Honeywell North 5400 Series Full Face Respirator 54001S 54001M/L

Short answer: the honeywell north 5400 series full face respirator 54001s is covered below on the specifications its own listing publishes, the standards it is certified to, and who it suits.

honeywell north 5400 series full face respirator 54001s — what the listing actually specifies

Honeywell North 54001 Full Face Respirator — North 5400 Series, NIOSH TC-14C, APF 50, Medium/Large Size

An air-purifying respirator filters air, it does not supply any. Under 29 CFR 1910.134 no air-purifying respirator may be worn in an atmosphere that is IDLH or oxygen-deficient (below 19.5% oxygen). Those conditions require a supplied-air respirator or an SCBA, and no filter or cartridge rating changes that.

Short answer: The North 54001 is a NIOSH TC-14C approved full-face respirator carrying APF 50 under OSHA 1910.134 Appendix A — five times the protection of a half-mask. It uses the North bayonet cartridge system, compatible with the complete North cartridge library. The polycarbonate lens provides eye and face protection against splash and mist, eliminating separate chemical goggles in most chemical exposure environments. The 5400 series delivers the same NIOSH compliance and cartridge access at lower cost. Confirm medium/large size with OSHA-required fit testing before operational deployment.

Honeywell North 54001 Full Face Respirator — Medium/Large | North 5400 Series

Reviewed by the WC Safety Editorial — PPE specialists with hands-on experience across industrial, construction, chemical, and welding environments. Last updated: May 2026.

The Honeywell North 54001 is the medium/large-size full-face respirator in the North North 5400 Series. It carries NIOSH 42 CFR 84 TC-14C approval and delivers an Assigned Protection Factor of 50 per OSHA 29 CFR 1910.134 Appendix A when properly fit-tested — the highest APF available in a tight-fitting air-purifying respirator. The 54001 uses the North bayonet cartridge connection, providing access to the complete North cartridge library — P100 particulate, organic vapor, acid gas, combination cartridges, and specialty mercury vapor protection. The full-face lens provides respiratory and eye protection in a single unit — critical in corrosive chemical environments, acid gas atmospheres, and any application requiring both high-level respiratory protection and face protection simultaneously. The 5400 series provides the same NIOSH TC-14C APF 50 in a more economical package — compliance and cartridge access are identical to the 7600. OSHA 1910.134(f)(2) requires fit testing before operational deployment.

Key Features — Honeywell North 54001

• North bayonet cartridge system — same access as the 7600 series: The 5400 uses the same North bayonet twist-lock cartridge fitting as the premium 7600, providing access to the complete North cartridge library — OV, AG, P100, combination, and specialty mercury vapor cartridges — at a lower facepiece cost
• Polycarbonate lens with integrated eye and face protection: Like the 7600, the 5400 facepiece protects eyes and face from liquid splashes and airborne particles — eliminating the need for separate goggles in environments with both respiratory and eye hazards
• Value-tier APF 50 compliance: The 5400 carries the same NIOSH TC-14C approval and APF 50 as the premium 7600 series — protection level and compliance standing are identical. For cost-sensitive programs where the additional comfort features of the 7600 are not required, the 5400 delivers full compliance at lower cost
• NIOSH TC-14C, APF 50: The 54001 meets NIOSH approval requirements for full-face tight-fitting APRs under 42 CFR Part 84. APF 50 — five times a half-mask — is appropriate for environments up to 50× OEL. Proper OSHA-required fit testing is required to claim the APF 50
• Complete North cartridge library access: The North bayonet connection provides access to every North bayonet cartridge — from standalone P100 to the 75852P100L mercury vapor combination cartridge. Cartridge platforms are brand-specific: North bayonet cartridges do not fit 3M, MSA, or Moldex respirators
• Integrated eye and face protection: The polycarbonate lens covers the face and eyes — eliminating separate chemical goggles in most industrial applications. In environments with simultaneous respiratory and eye hazards, the 54001 reduces PPE ensemble complexity and eliminates seal gaps that can occur between separate goggles and a half-mask

Applications — When to Use the North 54001

• High-concentration chemical environments requiring APF 50: The primary use case for full-face over half-mask. When airborne concentrations exceed 10× OEL (the APF 10 ceiling of a half-mask) but are ≤ 50× OEL, a full-face APR is required. Common situations: confined-space chemical entry, high-concentration solvent operations, process upset response, and industrial cleaning with concentrated chemicals
• Corrosive gas and vapor environments with eye hazard: HF, HCl, Cl₂, SO₂, ammonia, and bromine are both respiratory hazards and eye/mucous membrane hazards. The 54001's polycarbonate lens eliminates the need for separate chemical splash goggles in most corrosive atmospheres — a meaningful operational advantage in confined access areas and emergency response
• Asbestos abatement — Class I operations: OSHA 1926.1101 requires minimum APF 50 for Class I asbestos work (removal of thermal system insulation and surfacing ACM) when negative-pressure containment is not maintained. The 54001 with 7580P100 P100 satisfies the APF 50 requirement. Confirm specific work classification requirements with a certified industrial hygienist before deployment
• Lead abatement at elevated concentrations: OSHA 1926.62 requires APF 50 full-face protection when airborne lead exceeds 500 µg/m³ (10× PEL of 50 µg/m³). The 54001 with 7580P100 P100 provides the required full-face APF 50 protection level for lead abatement at these concentrations
• Silica-generating operations at higher concentrations: When respirable crystalline silica concentrations exceed 10× the PEL (0.5 mg/m³ for quartz), a full-face APR is required. The 54001 with 7580P100 P100 provides APF 50 particulate protection for concrete demolition, tunneling, and silica-heavy construction
• Spray painting and isocyanate environments: Two-part urethane and isocyanate-based coatings involve respiratory sensitizers that justify APF 50 full-face protection in many industrial spray environments. Select 7583P100L OV/AG/P100 or 7581P100L OV/P100 based on the specific paint chemistry documented in the SDS
• Ammonia environments requiring APF 50: Anhydrous ammonia in agriculture, refrigeration, and chemical manufacturing can reach concentrations where APF 10 half-masks are insufficient. The 54001 with N75004L NH₃ cartridge provides APF 50 ammonia protection. Above 50× OSHA PEL (1,750 ppm), a SCBA is required
• Oil refinery and sour gas maintenance: H₂S in sour crude environments, combined OV/AG exposures in process facilities. The 54001 with 7583P100L OV/AG/P100 addresses mixed gas hazard profiles at APF 50

Compatible Cartridges — North Bayonet System

The North 54001 accepts all North bayonet cartridges. Select based on the documented hazard profile from your site industrial hygiene assessment:

North bayonet cartridges are not compatible with 3M, MSA, Moldex, or other brands. Full cartridge lineup: North Respirator Cartridges & Filters →

Job-site cartridge selection: North Respirator Cartridge Guide 2026 →

North 5400 Series Full Face — All Sizes

North 54001 vs. Alternatives

Cartridge platforms are brand-specific — North and 3M bayonet systems are not interchangeable. All full-face APRs listed carry APF 50 when properly fit-tested per OSHA 1910.134 Appendix A.

OSHA Compliance & Fit Testing

All Honeywell North full-face respirators carry NIOSH 42 CFR 84 TC-14C approval — the NIOSH classification for tight-fitting full-face air-purifying respirators. Under OSHA 29 CFR 1910.134 Appendix A, a properly fit-tested full-face APR carries an Assigned Protection Factor of 50 — five times the APF 10 of a half-mask.

• Written respiratory protection program: Required under OSHA 1910.134(c) before any operational use — must include hazard assessment, written program, medical evaluation, fit testing, and cartridge change-out schedules. Full-face respirators place higher respiratory demands than half-masks and require specific documentation
• Medical evaluation first: OSHA 1910.134(e) requires a PLHCP-reviewed medical questionnaire before fit testing or operational use — full-face respirators require medical clearance before workers may be fit tested
• Annual fit testing: OSHA 1910.134(f)(2) mandates annual qualitative (QLFT) or quantitative (QNFT) fit testing. Qualitative fit testing is valid only for respirators used at ≤ APF 10; above that, quantitative fit testing is required for strict compliance. Confirm with your PLHCP or industrial hygienist for the specific testing protocol required for APF 50 programs
• User seal check every use: Positive and negative pressure checks per OSHA Appendix B-1 before each entry into the work area — required for all tight-fitting facepieces
• Cartridge change-out schedule: OSHA 1910.134(d)(3)(iii) requires a written schedule based on objective data — never rely on odor breakthrough as the change indicator
• APF 50 ceiling: Full-face APRs are appropriate when airborne concentrations are ≤ 50× OEL. If your hazard assessment documents concentrations above 50× OEL, a PAPR (APF 1000 with loose-fitting hood) or SCBA is required. Full-face APRs may not be used in IDLH atmospheres except under specific conditions defined in OSHA 1910.134(d)(2)
• Eye protection integration: The polycarbonate lens provides incidental splash and mist protection — a significant operational advantage in corrosive chemical environments. Lens inspection and replacement schedules should be documented in the written program

Who Needs the Medium/Large Size?

The Medium/Large size covers the majority of adult workers in the North North 5400 Series. The North 5400 Series full-face comes in two sizes — Small and Medium/Large — and M/L is the recommended starting point if you have not been fit tested. If OSHA-required fit testing confirms an inadequate seal in M/L, move to the Small (54001S). Facial dimensions — not body size or height — determine the correct respirator fit; do not select size based on general stature or weight.

Important: Do not select size based on general body size or height. Facial geometry determines respirator fit. The 54001 and 54001S 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.

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Written by Steven Eaton, WC Safety editor. WC Safety is an independent PPE review site, holds no inventory and sells nothing directly; Amazon links are affiliate links that earn a commission at no cost to you and never affect the assessment. This page is not medical, legal or regulatory advice.

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