{"product_id":"honeywell-north-7700-series-half-mask-respirator-770030s-770030m-770030l","title":"Honeywell North 7700 Series Half Mask Respirator 770030S 770030M 770030L","description":"\u003caside style=\"border:2px solid #ff9800;padding:20px 24px;background:#2a2520;margin:24px 0;border-radius:6px;color:#f5e6d3;\"\u003e\n  \u003cdiv style=\"display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap;\"\u003e\n    \u003cspan style=\"background:#ff9800;color:#1a1a1a;font-weight:bold;padding:4px 12px;border-radius:4px;font-size:0.95em;\"\u003eEDITORIAL REVIEW: 4.5\/5\u003c\/span\u003e\n    \u003cspan style=\"color:#ffb74d;font-size:0.9em;\"\u003eIndependently reviewed by WC Safety\u003c\/span\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"margin:0 0 14px 0;color:#f5e6d3;font-style:italic;line-height:1.5;\"\u003e\"The 770030M is the correct starting point for most programs — medium fits the majority of adult workers and the low-profile silicone design holds a seal through a full shift in ways that bulkier half-masks don't.\"\u003c\/p\u003e\n  \u003cp style=\"margin:0;\"\u003e\n    Read the full review →\n     ·\n    North Cartridge Guide 2026 →\n  \u003c\/p\u003e\n\u003c\/aside\u003e\n\n\u003ch2\u003eHoneywell North 770030M Half Mask Respirator — North 7700 Series, NIOSH TC-23C, APF 10, Medium Size, North Bayonet Cartridge System\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eShort answer:\u003c\/strong\u003e The North 770030M is a NIOSH TC-23C approved half-face respirator carrying APF 10 under OSHA 1910.134 Appendix A. It uses the North bayonet cartridge system — compatible with the full North cartridge library including OV, AG, P100, combination, and mercury vapor cartridges. The 7700's low-profile design is its defining advantage — it is specifically engineered to be worn under welding helmets and grinding face shields, making it the correct choice for welders and fabricators who need simultaneous respiratory and face-shield protection. Select medium after OSHA-required fit testing confirms it as the correct size — medium is the recommended starting size for most workers.\u003c\/p\u003e\n\n\u003ch2\u003eHoneywell North 770030M Half Mask Respirator — Medium | North 7700 Series\u003c\/h2\u003e\n\n\u003cp style=\"font-size:0.9em;color:#999;margin-top:-8px;\"\u003e\u003cstrong\u003eReviewed by the WC Safety Editorial Team\u003c\/strong\u003e — PPE specialists with hands-on experience across industrial, construction, chemical, and healthcare environments. \u003cem\u003eLast updated: May 2026.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHoneywell North 770030M\u003c\/strong\u003e is the medium-size half-mask respirator in the \u003cstrong\u003eNorth North 7700 Series\u003c\/strong\u003e. It carries \u003cstrong\u003eNIOSH 42 CFR 84 TC-23C approval\u003c\/strong\u003e and delivers an \u003cstrong\u003eAssigned Protection Factor of 10\u003c\/strong\u003e per OSHA 29 CFR 1910.134 Appendix A when properly fit-tested. The 770030M uses the North bayonet cartridge connection, providing access to the complete North cartridge library — particulate P100, organic vapor, acid gas, combination cartridges, and specialty mercury vapor protection. The 7700 series stands out in the North half-mask lineup for its low-profile facepiece design, which allows it to be worn simultaneously under welding helmets and grinding face shields without interference — a critical feature for welders and fabricators who need respiratory protection and over-mask eye protection at the same time. OSHA 1910.134(f)(2) requires fit testing before operational deployment regardless of size selected.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#1a1a1a;border-left:4px solid #ff9800;border-radius:4px;padding:16px 20px;margin:24px 0;\"\u003e\n\u003cstrong style=\"color:#ff9800;\"\u003eQuick Facts — Honeywell North 770030M\u003c\/strong\u003e\n\u003cul style=\"margin-top:8px;padding-left:18px;line-height:1.9;color:#e0e0e0;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Honeywell North North 7700 Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Medium — confirm with OSHA-required fit test before operational use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNIOSH Approval:\u003c\/strong\u003e 42 CFR Part 84 TC-23C — half-face tight-fitting air-purifying respirator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPF:\u003c\/strong\u003e 10 per OSHA 29 CFR 1910.134 Appendix A — appropriate when airborne concentration ≤ 10× OEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace Seal Material:\u003c\/strong\u003e Soft, non-allergenic silicone — chemical-resistant, conforms to facial contours, appropriate for latex-sensitive workers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Connection:\u003c\/strong\u003e North bayonet twist-lock — compatible with all North bayonet cartridges and prefilters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Design:\u003c\/strong\u003e Engineered to fit under welding helmets and grinding face shields without interference or seal disruption\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Harness:\u003c\/strong\u003e Adjustable multi-strap harness — adjustable for secure seal during extended wear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Testing:\u003c\/strong\u003e Required under OSHA 1910.134(f)(2) — annual QLFT or QNFT before operational deployment\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/guides\/n95-vs-kn95-vs-p100-which-respirator-do-you-actually-need\" style=\"color:#4fc3f7;\"\u003e\u003cstrong\u003eCompatible Cartridges:\u003c\/strong\u003e Full North bayonet library — OV, AG, P100, OV\/P100, AG\/P100, OV\/AG\/P100, Hg\/OV\/AG\/P100, NH₃, snap-on prefilters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features — Honeywell North 770030M\u003c\/h2\u003e\n\n\u003cul style=\"line-height:2;padding-left:18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-profile design — fits under welding helmets and face shields:\u003c\/strong\u003e The North 7700's defining advantage over most half-masks is its deliberately low-profile facepiece geometry. It is specifically designed to be worn simultaneously with welding helmets, grinding face shields, and similar over-mask protective equipment — eliminating the interference and broken seal that standard-profile half-masks cause when combined with overhead eyewear\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoft non-allergenic silicone face seal:\u003c\/strong\u003e The 7700 uses a premium silicone elastomer — not rubber or PVC — that conforms to facial contours with minimal pressure. Silicone is resistant to degradation from oil, solvents, and UV exposure, extending facepiece service life in industrial environments. The non-allergenic formulation is appropriate for workers with latex sensitivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for full-shift wear:\u003c\/strong\u003e The combination of soft silicone, low-profile design, and balanced weight distribution makes the 7700 one of the most comfortable half-masks for sustained full-shift operations — lower contact pressure on the face compared to harder elastomers reduces fatigue and improves compliance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable multi-strap head harness:\u003c\/strong\u003e The adjustable head harness distributes facepiece weight evenly and allows precise tension adjustment for workers with different head dimensions — a properly adjusted harness reduces face seal pressure points during full-shift wear\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/product-reviews\/honeywell-north-770030m-review\" style=\"color:#4fc3f7;\"\u003e\u003cstrong\u003eNIOSH TC-23C, APF 10:\u003c\/strong\u003e The 770030M meets the NIOSH approval requirements for half-face tight-fitting air-purifying respirators under 42 CFR Part 84. APF 10 per OSHA 1910.134 Appendix A means it is appropriate for environments up to 10× the OEL — the standard level for half-masks in OSHA-governed workplaces\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/guides\/best-3m-full-face-respirator\" style=\"color:#4fc3f7;\"\u003e\u003cstrong\u003eComplete North cartridge library access:\u003c\/strong\u003e The North bayonet connection gives the 770030M access to every North bayonet cartridge — from standalone P100 particulate filters to the 75852P100L mercury vapor combination cartridge, covering virtually every industrial gas, vapor, and particulate hazard. Cartridge platforms are brand-specific: North bayonet cartridges do not fit 3M, MSA, or Moldex respirators\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications — When to Use the North 770030M\u003c\/h2\u003e\n\n\u003cul style=\"line-height:1.9;padding-left:18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWelding, metal fabrication, and thermal cutting:\u003c\/strong\u003e The 7700's low-profile design is specifically built for welding environments where a face shield or auto-darkening helmet must be worn simultaneously. Metal oxide fumes — including hexavalent chromium from stainless steel TIG and MIG welding — require P100 filtration. The \u003ca href=\"\/products\/honeywell-north-7580p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7580P100\u003c\/a\u003e P100 filter or \u003ca href=\"\/products\/honeywell-north-7581p100l-organic-vapor-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7581P100L\u003c\/a\u003e OV\/P100 (for solvent degreaser environments) mounts directly on the 7700 bayonet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpray painting, surface coating, and auto refinish:\u003c\/strong\u003e Solvent-borne coatings generate organic vapor requiring OV cartridge protection; two-part urethane clear coats add isocyanate hazard. The \u003ca href=\"\/products\/honeywell-north-7583p100l-organic-vapor-acid-gas-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7583P100L\u003c\/a\u003e OV\/AG\/P100 is the standard cartridge for automotive refinish programs requiring both OV and acid gas coverage with P100 particle filtration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilica-generating operations — concrete grinding, cutting, demolition:\u003c\/strong\u003e OSHA 1926.1153 (construction) and 1910.1053 (general industry) mandate documented respiratory protection for silica at or above the action level. The \u003ca href=\"\/products\/honeywell-north-7580p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7580P100\u003c\/a\u003e P100 on the 7700 provides APF 10 protection against respirable crystalline silica\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical manufacturing and laboratory environments:\u003c\/strong\u003e The 7700 with appropriate North cartridge (OV, AG, OV+AG, or multi-contaminant) addresses the respiratory portion of the hazard. The facepiece's solvent-resistant silicone resists damage from incidental chemical contact in industrial settings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePesticide application:\u003c\/strong\u003e EPA-registered pesticide labels specify required cartridge types and protection levels. The 7700 with the OV\/P100 \u003ca href=\"\/products\/honeywell-north-7581p100l-organic-vapor-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7581P100L\u003c\/a\u003e satisfies OV\/P100 label requirements. Confirm label requirements before cartridge selection — pesticide labels are legal documents\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsbestos and lead abatement:\u003c\/strong\u003e OSHA 1926.1101 (asbestos) and 1926.62 (lead) require documented respiratory protection. The 7700 with \u003ca href=\"\/products\/honeywell-north-7580p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7580P100\u003c\/a\u003e P100 provides APF 10 particulate protection for abatement operations where half-mask APF is sufficient\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil refinery and petroleum maintenance:\u003c\/strong\u003e Hydrocarbon vapors (OV class) and H₂S (acid gas class) frequently co-exist in refinery maintenance. The \u003ca href=\"\/products\/honeywell-north-7583p100l-organic-vapor-acid-gas-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7583P100L\u003c\/a\u003e OV\/AG\/P100 or \u003ca href=\"\/products\/honeywell-north-n75002l-acid-gas-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75002L\u003c\/a\u003e OV\/AG vapor cartridge on the 7700 addresses both gas classes simultaneously\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Cartridges — North Bayonet System\u003c\/h2\u003e\n\n\u003cp\u003eThe North 770030M accepts all North bayonet cartridges and prefilters. Select based on the documented hazard profile from your site industrial hygiene assessment:\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;color:#e0e0e0;margin:16px 0;font-size:0.9em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eCartridge\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eNIOSH Class\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eProtects Against\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003ePrimary Applications\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#1e2a1e;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-7580p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7580P100\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eP100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eParticulate 99.97% (oil-proof)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eSilica, lead, asbestos, welding fume, metal oxide fume — particle-only work\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-7581p100l-organic-vapor-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7581P100L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOV \/ P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOrganic Vapor + P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eSpray painting, solvent operations with particulate co-exposure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-7582p100l-acid-gas-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7582P100L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eAG \/ P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eAcid Gas + P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eHCl, SO₂, HF, Cl₂ + particles — acid environments with dust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-7583p100l-organic-vapor-acid-gas-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7583P100L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOV\/AG \/ P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOrganic Vapor + Acid Gas + P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eChemical manufacturing, oil refinery, mixed OV\/AG + particle environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e75852P100L\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOV\/AG\/P100\/Hg\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eMercury Vapor + OV + AG + P100\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOnly North cartridge with NIOSH Hg vapor approval — chlor-alkali, mining, dental\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-n75001l-organic-vapor-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75001L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOV (gas-only)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOrganic Vapor — no particles\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eSolvent environments formally documented as particle-free — use 7581P100L if any particle co-exposure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-n75002l-acid-gas-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75002L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOV\/AG (gas-only)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eOrganic Vapor + Acid Gas — no particles\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eMixed chemical without particles — oil refinery vapor, lab gas-only zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:600;\"\u003e\u003ca href=\"\/products\/honeywell-north-n75004l-ammonia-methylamine-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75004L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eNH₃ (gas-only)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eAmmonia + Methylamine — no particles\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eWastewater, agriculture, ammonia refrigeration — no particle co-exposure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.85em;color:#666;margin-top:0;\"\u003e\u003cem\u003eNorth bayonet cartridges are \u003cstrong\u003enot compatible\u003c\/strong\u003e with 3M, MSA, Moldex, or other brands. See the complete lineup: \u003ca href=\"\/collections\/honeywell-north-respirator-cartridges\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eNorth Respirator Cartridges \u0026amp; Filters at WC Safety →\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:0.85em;color:#666;margin-top:4px;\"\u003e\u003cem\u003eFor cartridge selection guidance by job site: North Respirator Cartridge Guide 2026 →\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eNorth 7700 Series — All Sizes\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;color:#e0e0e0;margin:16px 0;font-size:0.93em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:center;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:400;\"\u003e\u003ca href=\"\/products\/honeywell-north-770030s-half-mask-respirator-small\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e770030S\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003eSmall\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eWorkers with smaller facial profiles — fit-test confirmed small\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#1e2a1e;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e\n\u003cstrong\u003e770030M\u003c\/strong\u003e \u003cem style=\"color:#9e9e9e;font-weight:400;\"\u003e(this product)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003eMedium\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eMost adult workers — recommended starting size if unsure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:400;\"\u003e\u003ca href=\"\/products\/honeywell-north-770030l-half-mask-respirator-large\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e770030L\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003eLarge\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eLarger facial profiles — fit-test confirmed large\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eNorth 770030M vs. Alternatives\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;background:#1a1a1a;color:#e0e0e0;margin:16px 0;font-size:0.9em;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#2a2a2a;\"\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eRespirator\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:center;\"\u003eAPF\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eFace Seal\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;border:1px solid #333;color:#ffb74d;text-align:left;\"\u003eKey Differentiator\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#1e2a1e;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;font-weight:700;\"\u003e770030M \u003cem style=\"color:#9e9e9e;font-weight:400;\"\u003e(this product)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eSoft non-allergenic silicone\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eLow-profile — fits under welding helmets; North bayonet cartridges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e\u003ca href=\"\/products\/honeywell-north-550030m-half-mask-respirator-medium\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e550030M\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eSilicone\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eSame North bayonet cartridges — lower cost if low-profile design not needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e\u003ca href=\"\/products\/3m-7502-half-mask-respirator-medium\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e3M 7500 Series\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003ePremium silicone\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e3M bayonet platform — not compatible with North cartridges; premium comfort and broad filter library\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e\u003ca href=\"\/products\/moldex-7002-half-mask-respirator-medium\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e3M 6000 Series\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003ePliable thermoplastic\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e3M bayonet platform — not compatible with North cartridges; broad 3M filter library\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#222;\"\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e\u003ca href=\"\/products\/3m-6502-ql-rugged-comfort-half-mask-respirator-medium\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e3M 6500QL Series\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;text-align:center;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003eRugged thermoplastic\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border:1px solid #333;\"\u003e3M platform — quick-latch lever for frequent removal between tasks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:0.85em;color:#666;\"\u003e\u003cem\u003eCartridge platforms are brand-specific — North, 3M, MSA, and Moldex bayonet systems are not interchangeable. All half-masks listed carry APF 10 when properly fit-tested per OSHA 1910.134 Appendix A.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eOSHA Compliance \u0026amp; Fit Testing\u003c\/h2\u003e\n\u003cp\u003eAll Honeywell North half-mask respirators carry \u003cstrong\u003eNIOSH 42 CFR 84 TC-23C approval\u003c\/strong\u003e — the NIOSH classification for tight-fitting half-face air-purifying respirators. Under \u003cstrong\u003eOSHA 29 CFR 1910.134 Appendix A\u003c\/strong\u003e, a properly fit-tested half-mask carries an \u003cstrong\u003eAssigned Protection Factor of 10\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul style=\"line-height:1.9;padding-left:18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWritten respiratory protection program:\u003c\/strong\u003e Required under OSHA 1910.134(c) before any worker uses a respirator operationally — must include hazard assessment, written program, medical evaluation, fit testing, and cartridge change-out procedures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical evaluation first:\u003c\/strong\u003e OSHA 1910.134(e) requires a completed medical questionnaire evaluated by a PLHCP before fit testing or operational use — no exceptions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnnual fit testing:\u003c\/strong\u003e OSHA 1910.134(f)(2) mandates annual qualitative (QLFT) or quantitative (QNFT) fit testing — required whenever the facepiece model or size changes as well\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser seal check every use:\u003c\/strong\u003e Positive and negative pressure seal checks per OSHA Appendix B-1 must be performed each time the respirator is donned before entering the work area\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge change-out schedule:\u003c\/strong\u003e OSHA 1910.134(d)(3)(iii) requires a written schedule based on objective data — never rely on odor breakthrough as the change indicator\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAPF 10 ceiling:\u003c\/strong\u003e Half-masks are appropriate only when airborne concentrations do not exceed 10× the OEL. If your hazard assessment documents concentrations above 10× OEL, a full-face respirator (APF 50) or SCBA is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho Needs the Medium Size?\u003c\/h2\u003e\n\n\u003cp\u003eThe medium is the recommended starting size for most adult workers in North 7700 and 5500 programs. If OSHA-required fit testing confirms an inadequate seal in medium, move to small (770030S). The medium covers the majority of adult facial profiles — if unsure, always begin here.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Do not select size based on general body size. Facial geometry determines respirator fit. The 770030S, 770030M, and 770030L are identical in every respect — NIOSH approval, APF, cartridge compatibility — except facepiece geometry. OSHA 1910.134(f)(2) requires annual fit testing regardless of size chosen.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions — Honeywell North 770030M\u003c\/h2\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat makes the North 7700 different from other half-masks?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eThe defining feature of the North 7700 is its low-profile facepiece geometry — designed specifically to be worn simultaneously with welding helmets, auto-darkening shields, and grinding face shields. Most standard-profile half-masks create interference or break the face seal when worn under these over-masks; the 7700 was engineered to eliminate this problem. The soft non-allergenic silicone seal, combined with the low-profile design, also makes it one of the most comfortable half-masks for full-shift wear in physically demanding environments.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eCan I use 3M cartridges on the North 7700?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eNo. The North 7700 uses the North bayonet twist-lock connection, which is a different geometry than the 3M bayonet used on 3M 6000, 6500QL, and 7500 series respirators. These systems are not interchangeable. All cartridges used on the North 7700 must be North-branded bayonet cartridges — see the complete lineup at \u003ca href=\"\/collections\/honeywell-north-respirator-cartridges\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eNorth Cartridges \u0026amp; Filters at WC Safety →\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWill the North 7700 fit under a welding helmet?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eYes — the 7700 was specifically designed with a low-profile shape to fit under welding helmets, auto-darkening shields, and grinding face shields. This is its primary differentiator from standard-profile half-masks. The low-profile geometry keeps the cartridge assembly close to the face to prevent interference with the helmet's pivot mechanism. Confirm fit before operational deployment — the specific combination of helmet and respirator model should be tested together.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat NIOSH approval does the North 7700 carry?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eThe North 7700 is NIOSH approved under 42 CFR Part 84 as a TC-23C half-face tight-fitting air-purifying respirator. Under OSHA 29 CFR 1910.134 Appendix A, a properly fit-tested North 7700 carries an Assigned Protection Factor (APF) of 10, meaning it may be used in environments where airborne contaminant concentration does not exceed 10× the Occupational Exposure Limit.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat size North 7700 do I need — Small, Medium, or Large?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eFacial dimensions — not overall body size — determine the correct respirator size. The definitive method is OSHA-required fit testing. If you have not been fit tested, start with the Medium (\u003ca href=\"\/products\/honeywell-north-770030m-half-mask-respirator-medium\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e770030M\u003c\/a\u003e) — it fits the majority of adult workers. If the medium fails OSHA qualitative or quantitative fit testing, try the Small (\u003ca href=\"\/products\/honeywell-north-770030s-half-mask-respirator-small\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e770030S\u003c\/a\u003e) or Large (\u003ca href=\"\/products\/honeywell-north-770030l-half-mask-respirator-large\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e770030L\u003c\/a\u003e) accordingly. OSHA 1910.134(f)(2) requires annual fit testing before operational deployment.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat cartridges work with the North 7700?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eThe 7700 accepts all North bayonet cartridges: \u003ca href=\"\/products\/honeywell-north-7580p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7580P100\u003c\/a\u003e (P100 particulate), \u003ca href=\"\/products\/honeywell-north-7581p100l-organic-vapor-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7581P100L\u003c\/a\u003e (OV\/P100), \u003ca href=\"\/products\/honeywell-north-7582p100l-acid-gas-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7582P100L\u003c\/a\u003e (AG\/P100), \u003ca href=\"\/products\/honeywell-north-7583p100l-organic-vapor-acid-gas-p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7583P100L\u003c\/a\u003e (OV\/AG\/P100), the 75852P100L mercury vapor cartridge, and gas-only vapor cartridges including \u003ca href=\"\/products\/honeywell-north-n75001l-organic-vapor-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75001L\u003c\/a\u003e (OV), \u003ca href=\"\/products\/honeywell-north-n75002l-acid-gas-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75002L\u003c\/a\u003e (OV\/AG), and \u003ca href=\"\/products\/honeywell-north-n75004l-ammonia-methylamine-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eN75004L\u003c\/a\u003e (NH₃\/methylamine). Snap-on prefilters (7506-series N95\/R95\/N99 and 7504R95) attach over vapor cartridges for light particulate addition. See: North Cartridge Guide 2026 →\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eWhat is the difference between the 7700 and the 5500?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eBoth the North 7700 and 5500 carry NIOSH TC-23C approval, APF 10, and use the same North bayonet cartridge system — the compliance standing is identical. The 7700 is the premium option: soft non-allergenic silicone, low-profile design for welding-helmet compatibility, and higher comfort for full-shift use. The 5500 uses the same cartridge system at a lower price point and is appropriate when the low-profile welding feature is not required. See: \u003ca href=\"\/products\/honeywell-north-550030m-half-mask-respirator-medium\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003eNorth 550030M (5500 Series Medium)\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eCan the North 7700 be used for asbestos or lead abatement?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eThe North 7700 with \u003ca href=\"\/products\/honeywell-north-7580p100-respirator-cartridge\" style=\"color:#4fc3f7;text-decoration:underline;\"\u003e7580P100\u003c\/a\u003e P100 filters provides NIOSH TC-23C APF 10 particulate protection applicable to many asbestos and lead abatement operations. For asbestos, OSHA 1926.1101 specifies minimum respirator requirements by work classification — confirm your specific class of operation requires only APF 10, as Class I asbestos operations may require APF 50. For lead abatement under OSHA 1926.62, confirm that airborne lead concentrations at your site do not exceed 10× the PEL of 50 µg\/m³ (i.e., do not exceed 500 µg\/m³). At higher concentrations, a full-face respirator or SCBA is required.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eHow do I clean and maintain the North 7700?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eRemove cartridges before cleaning. Wash the facepiece with mild soap and warm water; rinse thoroughly to remove all soap residue. For disinfection, wipe with an approved disinfectant wipe or solution and allow to air dry. Do not use solvents, bleach, or abrasive cleaners on the silicone face seal. Inspect the face seal, exhalation valve, and straps before each use — replace the facepiece if the seal is cracked, permanently deformed, or if the elastomer has lost flexibility. Silicone is more chemically resistant than rubber or PVC; however, prolonged contact with concentrated solvents will degrade any elastomer over time.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-bottom:6px;\"\u003eHow often do North cartridges need to be replaced?\u003c\/h3\u003e\n\u003cp style=\"margin-top:0;\"\u003eOSHA 1910.134(d)(3)(iii) requires a written cartridge change-out schedule established before use — not based on detecting breakthrough by smell. For P100 filters (7580P100), replace when breathing resistance increases noticeably or upon physical damage. For vapor cartridges and combination cartridges, 3M and Honeywell both offer service life estimation tools based on chemical, concentration, temperature, humidity, and shift length. End-of-shift replacement is the most conservative approach and is the standard in high-hazard environments. Never rely on odor — odor thresholds for most regulated substances are above safe exposure limits. See: North Cartridge Guide 2026 →\u003c\/p\u003e","brand":"Honeywell North","offers":[{"title":"Small","offer_id":44165828673624,"sku":"770030S","price":30.25,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":44165828706392,"sku":"770030M","price":34.29,"currency_code":"USD","in_stock":true},{"title":"Large","offer_id":44165828739160,"sku":"770030L","price":34.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/1900\/0920\/files\/51IdGxPa5WL.jpg?v=1773617602","url":"https:\/\/wcsafety.com\/products\/honeywell-north-7700-series-half-mask-respirator-770030s-770030m-770030l","provider":"WC Safety","version":"1.0","type":"link"}