Best Honeywell North Respirator Filters and Cartridges (2026) — Buyer's Guide to All 17 Models
Best Honeywell North Respirator Filters and Cartridges: Complete Compatibility and Selection Guide for the North Bayonet System
Honeywell North offers a comprehensive line of NIOSH-approved cartridges and prefilters for their North bayonet respirator system — compatible with the North 5400 and 7600 half-face, 7700 full-face, and other North bayonet-mount facepieces. This guide covers every filter and cartridge option in the North lineup: N95/R95/N99/P100 prefilters, organic vapor, acid gas, combination cartridges, and specialty protection. Includes OSHA compliance requirements and how to pair cartridges with facepieces for specific hazards.
Honeywell North Bayonet Mount: Compatibility Notes
Critical: Honeywell North bayonet mount is NOT compatible with 3M bayonet cartridges. The thread pitch and profile differ. Mixing brands on the same facepiece creates an unreliable seal and is not NIOSH-approved. Always use North cartridges on North facepieces and 3M cartridges on 3M facepieces.
North bayonet cartridges are compatible with:
- North 5400 series half-face: 5400, 5400L (large), 5400N
- North 7600 series half-face: 7600, 7700 (full-face version)
- North 5500 series half-face: 5500, 5500L with snap-on prefilter adapter
Prefilter Options: N95, R95, N99, P100
| Model | Rating | Oil Resistance | Best For |
|---|---|---|---|
| 7506N95 | N95 | Not oil resistant | Dry wood dust, concrete, silica |
| 7506R95 | R95 | Oil resistant (1 shift) | Metalworking with oil-based coolant |
| 7506N99 | N99 | Not oil resistant | Pharmaceutical dust; fine silica |
| 7506P100 | P100 | Oil proof | Asbestos, lead, beryllium, toxic dust |
The 7506 prefilters snap directly onto North bayonet gas cartridges, allowing the combination of chemical gas protection with particle filtration without a specialized combination cartridge. This modularity is a key advantage of the North system.
Gas Cartridge Options
| Series | Protection | NIOSH Class | Primary Application |
|---|---|---|---|
| 75FFP100 | OV+P100 | OV+P100 | Solvent vapor + particles; spray painting |
| 7581P100L | OV+P100 (large) | OV+P100 | Higher-capacity OV+P100 for extended use |
| 7582P100L | OV+AG+P100 | OV+AG+P100 | Mixed solvent/acid gas + particles |
| 7583P100L | OV+P100+Mercury | OV+Mercury+P100 | Mercury vapor environments |
| 7584P100L | OV+AG+P100+Mercury | Full combination | Broadest chemical + particle coverage |
| 75SCP100L | OV+AG+P100+Special | Chemical special | Specific chemical environments |
| N75001L | OV only | OV (gas only) | Solvent vapor without particles |
| N75002L | AG only | AG (gas only) | Acid gas without particles |
| N75003L | OV+AG | OV+AG (gas only) | Mixed OV+AG without particles |
| N75004L | Ammonia | Ammonia/Methylamine | Refrigeration, cold storage |
When to Upgrade to the North 7700 Full-Face Respirator
The North 7700 full-face respirator uses the identical bayonet cartridge system as North half-face units, accepting all North bayonet cartridges. The critical difference is assigned protection factor: APF 50 for the full-face versus APF 10 for the half-face. Upgrade to the full-face (North 7700 series) when:
- Measured contaminant concentration exceeds 10× the OSHA PEL — half-face APF 10 is no longer adequate and full-face APF 50 is required to bring effective exposure below the PEL
- The contaminant is also a skin, eye, or mucous membrane hazard — chemical splashes, corrosive mists, and reactive vapors require eye and face protection that the full-face provides integrated with respiratory protection
- Work involves substances with low IDLH concentrations where a larger protection margin over the PEL is warranted as a conservative program decision
- Regulatory or contractual specifications explicitly require APF 50 — asbestos abatement under OSHA 1926.1101, for example, requires full-face for certain asbestos fiber concentrations
OSHA 1910.134 Compliance for North Respirator Programs
Deploying any North half-face or full-face respirator in a mandatory respiratory protection program requires full compliance with OSHA 29 CFR 1910.134. Program requirements include:
- Written respiratory protection program: Document procedures for cartridge selection, fit testing schedule, medical evaluation process, training content, maintenance, and cartridge change schedule methodology
- Medical evaluation: Workers must complete the OSHA Appendix C questionnaire before initial fit testing. A PLHCP (physician or licensed health care professional) must review responses and clear workers for tight-fitting North respirators. Cardiac or respiratory conditions may restrict clearance
- Fit testing: Annual qualitative (QLFT) or quantitative (QNFT) fit testing required for all tight-fitting North respirators. Fit testing must be performed with the specific North facepiece model and cartridge/prefilter combination that will be used in the field
- OV/AG cartridge change schedule: A written schedule using OSHA-recognized service life methodology (North/Honeywell service life calculator; OSHA Appendix D) is required unless color-change ESLI is present on the cartridge. The schedule must account for contaminant identity, concentration, humidity, and temperature
- Maintenance and inspection: Inspect North facepieces, valves, and cartridge seating surfaces before each use. Damaged or degraded components must be replaced before returning respirators to service
- Annual training: Train workers on respirator capabilities, limitations, proper donning/doffing procedure, positive and negative seal check, cartridge change frequency rationale, and emergency procedures
NIOSH approval certifies that the North hardware meets performance standards — OSHA 1910.134 governs how that hardware is used in the workplace. Operating a NIOSH-approved North respirator outside a compliant 1910.134 program does not protect either workers or employers from OSHA citation. Assign a respirator program administrator to maintain program documentation, fit test records, and medical evaluation files.
Related Filter & Cartridge Comparisons
Compare the specific Honeywell North filters and cartridges head-to-head:
Frequently Asked Questions
Q: Are Honeywell North and 3M cartridges interchangeable?
A: No — they use different bayonet mount systems with incompatible thread profiles. Using a North cartridge on a 3M facepiece (or vice versa) does not create a proper seal and is not NIOSH-approved. Always match cartridge brand to facepiece brand.
Q: What cartridge do I need for spray painting?
A: For spray painting with solvent-based coatings: North 75FFP100 or 7581P100L (OV+P100). The P100 component handles atomized paint mist (particles); the OV component handles solvent vapors. For two-component coatings with acid catalyst components, use 7582P100L (OV+AG+P100).
Q: What is the difference between 75FFP100 and 7581P100L?
A: Both are OV+P100 combination cartridges. The 7581P100L is the large-capacity version with more activated carbon, providing longer OV service life before breakthrough. For high-concentration organic vapor environments or extended-shift use, the L (large) version extends change schedule intervals.
Q: Do North prefilters work with gas cartridges from other brands?
A: No — North snap-on prefilters (7506 series) are designed for the North bayonet cartridge interface. They attach to the front of North cartridges. Attempting to use them on 3M or other brand cartridges will not create a secure attachment.
Q: When should I replace Honeywell North cartridges?
A: Replace per a written change schedule based on OSHA 1910.134 service life calculations for the specific OV or AG compound. The OV component breakthrough can be estimated using North service life data for your contaminant concentration, humidity, and temperature. The P100 filter is replaced based on breathing resistance increase. Replace cartridges in pairs.
Q: Is fit testing required for North 5500 series respirators?
A: Yes — all tight-fitting respirators require annual qualitative or quantitative fit testing per OSHA 1910.134(f). The North 5500 must be fit tested with the cartridge installed.
Q: What is the cartridge for ammonia and refrigerant work?
A: The Honeywell North N75004L provides ammonia and methylamine protection. It is the correct choice for refrigeration maintenance and cold storage environments where ammonia refrigerant (R-717) leaks are a risk. Standard OV or AG cartridges do not protect against ammonia.
Q: Are North cartridges NIOSH-approved?
A: Yes — Honeywell North cartridges used with compatible North facepieces have NIOSH approval numbers (TC-23C format for combination cartridges). Verify the specific TC approval number on the cartridge and confirm on the NIOSH Certified Equipment List at cdc.gov/niosh/npptl.
Q: Does the North system support full-face respirators?
A: Yes — the North 7700 series full-face uses the same bayonet cartridge system, accepting all North bayonet cartridges and providing APF 50. Full-face is required when contaminant concentrations exceed 10× OSHA PEL or when eye/face chemical protection is needed.
Q: Where can I buy Honeywell North respirator cartridges?
A: WCSafety.com carries the full Honeywell North cartridge lineup including 75FFP100, 7581P100L, 7582P100L, 7583P100L, N75001L, N75002L, and prefilters in N95, R95, N99, and P100 ratings.
Q: Can I use North cartridges with a PAPR?
A: North PAPR systems (7600 PAPR) use specific PAPR-format cartridges and canisters, not the same bayonet cartridges used on North half-face and full-face negative-pressure respirators. Consult the North PAPR system documentation for compatible cartridge types.
Q: How do I store North respirator cartridges when not in use?
A: Store cartridges attached to the respirator facepiece in a sealed plastic bag when not in use. Activated carbon in OV cartridges begins adsorbing ambient vapors when exposed to air. Keeping them sealed in a low-vapor environment extends service life. Store in a cool, dry location away from direct sunlight and chemical storage areas.
Q: What respirator is recommended for North cartridges in chemical plants?
A: For chemical plant applications with mixed OV and acid gas hazards: North 5400 or 7600 half-face with 7582P100L (OV+AG+P100) for half-face APF 10 protection, or the North 7700 full-face with 7582P100L for APF 50. Select based on measured contaminant concentrations relative to OSHA PELs and required APF.
Q: Do North cartridges have service life indicators (ESLI)?
A: The 75FFP100 and some North OV cartridges include color-change ESLI technology that indicates approaching OV breakthrough. Verify the specific model datasheet for ESLI availability — not all North cartridges include ESLI. Without ESLI, a written service life change schedule is required per OSHA 1910.134.
Q: What is the North 75SCL and when is it used?
A: The 75SCL is a combination specialty cartridge for specific chemical environments beyond the standard OV/AG classifications. Consult the North application guide and your industrial hygienist for specialty cartridge selection in unusual chemical exposure scenarios.
Shop and Learn More on WCSafety.com
New to respirator cartridges? Start with our complete respirator cartridge selection guide to match the right cartridge to your hazard and build an OSHA-compliant change schedule.
Disclosures & editorial standards
WC Safety participates in the Amazon Services LLC Associates Program. Outbound Amazon links are affiliate links. We accept no manufacturer payment, sponsorship, or product samples. This content is not medical, legal, or regulatory advice. Safety equipment selection is governed by applicable OSHA standards and your facility's safety program.
WC Safety participates in the Amazon Services LLC Associates Program. Outbound Amazon links are affiliate links. We accept no manufacturer payment, sponsorship, or product samples. This content is not medical, legal, or regulatory advice. Safety equipment selection is governed by applicable OSHA standards and your facility's safety program.