Which Honeywell North respirator cartridge or filter should you buy in 2026?

Short answer: For most industrial buyers running a North-platform respirator, the Honeywell North 7581P100L (organic vapor + P100) covers the widest range of common tasks — spray finishing, adhesives, and solvent-heavy cleaning — at a strong price point. Workers facing broader chemical mixes or unknown gas exposures should step up to the 75SCP100L. Prefilter pads and P100-only filters round out the lineup for dust-dominant tasks.

Honeywell North Respirator Filters and Cartridges (2026)

All 17 NIOSH-approved Honeywell North cartridges, filters, and prefilter pads — sharing the universal North bayonet connection. P100 particulate-only filters, gas-only N75 cartridges, and combination options all snap directly onto North 5500, 7700, 5400, and 7600 Series facepieces without adapters.

Comparing platforms? See the 3M Respirator Filters and Cartridges collection. North and 3M bayonets are not cross-compatible. For a full brand-level buying guide: Honeywell North Cartridge Guide.

Editor's pick — Honeywell North 75SCP100L Multi-Contaminant P100 Cartridge
The broadest single-cartridge protection in the North lineup — organic vapor, acid gas, ammonia, methylamine, and formaldehyde coverage combined with P100 particulate filtration (99.97% efficient). The right choice whenever your hazard inventory includes more than one chemical class, at a price point that rewards keeping spares on the shelf. ★ Amazon affiliate disclosure: WC Safety earns commissions on qualifying Amazon purchases.

VIEW 75SCP100L → CHECK PRICE ON AMAZON →

What this collection covers

• P100 particulate filters — 7580P100 (2-pack) and 75FFP100 (flat disc): 99.97% oil-proof particulate filtration, no gas protection.
• Prefilter pads — 7506N95, 7506N99, 7506R95, 7504R95: snap-on N95/N99/R95 pads for dry-dust or to extend gas cartridge life.
• Gas-only cartridges (N75 Series) — N75001L (OV), N75002L (AG), N75003L (OV+AG), N75004L (ammonia/methylamine): sorbent-only, no built-in particulate stage.
• Combination cartridges (758x P100L Series) — 7581P100L (OV+P100), 7582P100L (AG+P100), 7583P100L (OV+AG+P100), 7584P100L (AM+P100), 75852P100L (mercury/chlorine+P100).
• Defender super-combination (75SC Series) — 75SCL (multi-gas, no P100) and 75SCP100L (multi-gas+P100): broadest coverage for mixed or unknown chemical environments.

Full lineup comparison — all 17 Honeywell North filters and cartridges

All products: universal North bayonet. Compatible: North 5500, 7700, 5400, 7600 Series. Not compatible with 3M, Moldex, or GVS bayonets.

* 7506R95 price of $345.00 as listed — verify for case-pack vs. single-pair quantity before purchase. All other prices sourced from WC Safety live collection page, 2026-06-09. Prices subject to change.

Which cartridge or filter should you buy?

• Buy the 7580P100 if your hazard is particulate-only (silica, metal fume, wood dust) with no gas exposure — lowest-cost P100 entry. Full review.
• Buy the 7581P100L if you spray paint, apply coatings, or handle solvent tasks that also generate mist — OV sorbent + P100 in one cartridge. Full review.
• Buy the 75SCP100L if your site has mixed or unknown chemical exposures — broadest single-cartridge coverage for maintenance, remediation, and hazmat. Best-of guide.
• Buy the 75SCL if you need broad multi-gas coverage without a built-in P100 — lower resistance, add a prefilter pad when dust is intermittent. Full review.
• Buy the 75852P100L if your process involves mercury vapor or chlorine gas — the only North cartridge with mercury sorbent. Full review.
• Buy a prefilter pad (7506N95 / 7506N99 / 7504R95) if you already have N75 gas-only cartridges and need to add a particulate stage — pads extend sorbent life by blocking coarse dust. Filter types guide.

Shop Honeywell North cartridges and filters on Amazon → 75SCP100L 7581P100L 7580P100 75FFP100 75SCL 7582P100L 7583P100L 75852P100L 7506N95

How to choose a Honeywell North cartridge or filter

Every product here fits the same North bayonet — facepiece compatibility is answered. Your variables are protection type, NIOSH class, and cost per shift.

Step 1: Identify your hazard class — gas, particulate, or combination

Particulate filters (P100, N95, R95) capture particles but offer zero gas protection. Gas cartridges (OV, AG, AM) absorb vapors but cannot capture particles. Tasks generating both — spray painting produces solvent vapor and paint mist simultaneously — require a combination cartridge like the 7581P100L. See: filter types guide and OV vs. P100 comparison.

Step 2: Match the NIOSH particulate class to your oil-mist exposure

N-series (N95, N99) — not oil-resistant; dry-dust only. R-series (R95) — resists oil aerosols up to 8 hrs. P-series (P100) — oil-proof, no time limit on oil degradation; correct default for spray apps and machining with cutting-fluid mist. P100 is recommended for silica and most construction tasks. See: silica respirator guide and P100 vs. N95.

Step 3: Select the correct gas sorbent for your specific chemical

Not all gas cartridges protect against all gases. Organic vapor cartridges cover solvents and VOCs — not inorganic gases like chlorine, ammonia, or sulfur dioxide. Acid gas cartridges cover chlorine, HCl, and SO₂. Ammonia/methylamine cartridges cover alkaline gases. Mercury vapor requires the specialized 75852P100L. For mixed or uncertain exposures, the 75SCP100L or 75SCL consolidates broad sorbent coverage. See our cartridge selection guide and cartridge color-code chart.

Step 4: Confirm North platform — bayonet compatibility is non-transferable

Every cartridge and filter here uses the North bayonet — exclusive to Honeywell North facepieces and incompatible with 3M (6000, 7800, Secure Click), Moldex, or any other brand. Mixed facepiece inventories require separate cartridge stocks per platform. Verified compatible: North 5500 half-mask, 7700 half-mask, 5400 full-face, 7600 full-face. See also: best North cartridge for paint fumes and best North cartridge for silica dust.

Step 5: Consider gas-only + prefilter pad vs. built-in combination cartridge

When particulate exposure is intermittent, some buyers pair a gas-only N75 cartridge with a snap-on prefilter pad (7506N95, 7506N99, or 7504R95) — swapping only the pad when it loads, extending sorbent life. Trade-offs: two pieces to track, higher facepiece profile, and pad-seating verification before each shift. Built-in combination cartridges (758x P100L series, 75SCP100L) are simpler and preferred for consistent multi-hazard protection. See our North cartridge best-of guide.

NIOSH approval and OSHA compliance context

Every product here is approved under NIOSH 42 CFR Part 84, which requires meeting minimum efficiency thresholds (95%, 99%, or 99.97%) under standardized aerosol challenge before Honeywell may apply a NIOSH TC- approval number.

Under OSHA 29 CFR 1910.134, employers must provide NIOSH-approved respirators when engineering controls do not reduce exposure below PEL or TLV. Cartridge selection must be based on a written respiratory protection program covering hazard assessment, service life determination, and medical evaluation. All products here satisfy the 1910.134(d)(1) equipment requirement. Service life is governed by Mandatory Appendix B-2.

For crystalline silica (OSHA 1926.1153 / 1910.1053), a minimum APF 10 half-mask with P100 is required when controls are insufficient. The 7580P100 and all P100L combination cartridges satisfy that requirement. See: silica dust respirator guide.

For paint and coating tasks under OSHA's isocyanate and lead standards, the 7581P100L and 7583P100L are the primary options — consult a CIH when building a formal program. All NIOSH TC- approval numbers are verifiable on the NIOSH Certified Equipment List (CEL).

Compatible facepieces and sibling respiratory protection silos

All products here pair with North 5500, 7700, 5400, and 7600 series facepieces. Half-mask APF = 10; full-face APF = 50 under OSHA 1910.134. For higher APF tasks, pair the 5400 or 7600 full-face with the appropriate combination cartridge from this collection.

Running a 3M platform? The 3M Respirator Filters and Cartridges collection covers the full 3M bayonet and Secure Click lineup — not interchangeable with North. For welding: best respirator for welding fumes guide.

Total cost of ownership — cartridge and filter replacement budgeting

Reusable respirators shift ongoing PPE spend entirely to cartridge and filter replacement. OSHA Mandatory Appendix B-2 to 1910.134 governs change-out schedules — since no North cartridge includes an ESLI, employers must set schedules based on chemical concentrations, humidity, temperature, work rate, and manufacturer capacity data.

Example: a spray painter running a North 7700 with 7581P100L cartridges ($25.59/pair) at 1 pair per shift spends ~$6,400/year per worker at 250 days. Extending change-out intervals to cut cost is an OSHA violation and a safety risk — cartridge spend is not compressible without a qualified IH assessment.

P100 filters (7580P100, 75FFP100) — no NIOSH time limit for oil-free use; replace on increased resistance or physical damage. Prefilter pads — replace when visibly dirty or resistance increases, potentially daily in high-dust tasks.

Frequently asked questions — Honeywell North respirator filters and cartridges

Are all Honeywell North cartridges and filters in this collection NIOSH-approved?

Yes — every product is NIOSH-approved under 42 CFR Part 84 and verified against the NIOSH Certified Equipment List before listing.

Honeywell North 7581P100L vs. 75SCP100L — which combination cartridge should I buy?

7581P100L (OV + P100) — right when solvent vapor and paint mist are the primary hazards. 75SCP100L adds acid gas, ammonia, and formaldehyde — choose it when exposure is mixed or uncharacterized. See: best-of guide.

What facepieces are compatible with Honeywell North cartridges?

Compatible with North 5500 half-mask, 7700 half-mask, 5400 full-face, and 7600 full-face respirators. NOT compatible with 3M (6000, 7800, Secure Click), Moldex, or GVS bayonets. Do not force incompatible connections — bayonet fit-lock is a NIOSH-required element of approval.

Can I use a Honeywell North N75 gas-only cartridge without a prefilter pad?

Yes, but only when no significant particulate hazard exists. Spray finishing, sanding, and grinding generate both gas and particles — add a prefilter pad (7506N95, 7506N99, 7504R95) or use a combination cartridge like the 7581P100L. Gas-only in a particulate environment is an OSHA 1910.134 violation.

P100 vs. N95 — which is better for silica dust on a Honeywell North respirator?

P100 — 99.97% oil-proof filtration vs. 95% for N95, and NIOSH guidance recommends P100 for crystalline silica due to silicosis severity. 7580P100 is the low-cost entry; 75SCP100L adds gas protection when chemicals are also present. See: P100 vs. N95 guide and best North cartridge for silica dust.

How often do I need to replace Honeywell North combination cartridges?

No North cartridge includes an ESLI, so employers must establish a change-out schedule under OSHA Mandatory Appendix B-2 to 1910.134 based on chemical identity, concentration, humidity, temperature, and work rate. For most OV applications, manufacturer guidance typically covers 8 hours at TLV/PEL concentrations — but this varies by compound. Consult Honeywell service life data and OSHA's Appendix B-2 before setting a schedule.

Do prefilter pads (7506N95 / 7506N99 / 7504R95) replace full cartridges?

No — pads provide particulate protection only (no gas sorbent). They work (1) standalone for dry-dust tasks with no gas hazard, or (2) over a gas-only N75 cartridge as a sacrificial dust stage to extend sorbent life. For gas or vapor hazards, pair pads with the appropriate N75 cartridge or use a combination cartridge.

What does the Honeywell North 75SCL Defender protect against?

75SCL covers OV, acid gas (Cl₂, HCl, SO₂), ammonia, methylamine, and formaldehyde — gas only, no P100. For gas + particulate tasks, use the 75SCP100L or pair 75SCL with a 7506N95 or 7580P100. See: 75SCL review.

Can I use Honeywell North cartridges with a 3M facepiece?

No — the North bayonet is physically incompatible with 3M bayonet and Secure Click systems. Forcing the connection creates an unsealed interface. Use 3M cartridges on 3M facepieces: 3M respirator filters and cartridges.

Which Honeywell North cartridge is best for spray painting?

The 7581P100L (OV + P100) for most spray applications — handles solvent vapors while P100 captures paint mist. For 2K isocyanate coatings (urethane, epoxy), consult your SDS and IH program; isocyanate exposures may require specific change-out intervals or supplied-air at high concentrations. See our best North cartridge for paint fumes guide.

What does the Honeywell North 75852P100L protect against, and who needs it?

75852P100L — mercury vapor and chlorine gas + P100. Required for chlor-alkali, lamp recycling, dental amalgam, and operations involving elemental mercury or chlorine. Not needed if those hazards are absent from your SDS. See: 75852P100L review.

Do Honeywell North cartridges meet OSHA requirements for respiratory protection?

All products satisfy the NIOSH-approved equipment requirement of OSHA 1910.134(d)(1). Full compliance also requires a written program, hazard assessment, medical evaluation, fit testing, worker training, and a change-out schedule — cartridge selection is one step, not the whole program. See OSHA's Respiratory Protection page for the full framework.

Honeywell North N75001L vs. 7581P100L — what is the difference?

N75001L is gas-only OV — no particulate protection. 7581P100L adds a bonded P100 filter to the same sorbent. Use N75001L only when particulate hazard is confirmed absent; use 7581P100L for any task with mist, smoke, or dust. See: N75001L review · 7581P100L review.