Honeywell North 7584P100L Ammonia Methylamine P100 Respirator Cartridge

Honeywell North 7584P100L — Ammonia/Methylamine + P100 Combination Cartridge, NIOSH 42 CFR 84, Pair

The Honeywell North 7584P100L is a NIOSH 42 CFR 84 ammonia + methylamine + P100 combination cartridge providing protection against ammonia, methylamine, and 99.97% P100 particulate filtration — sold as a pair for the North bayonet system. The 7584P100L is the correct cartridge when ammonia is the documented primary gaseous hazard and organic vapors or acid gases are not co-present. In environments where OV, AG, and NH₃ are all present, the 75SCP100L (OV+AG+NH₃+P100) provides full multi-contaminant coverage. If only OV and ammonia are present without acid gas, the N75004L gas-only covers the same gases without P100 (lower breathing resistance when particles are absent). Compatible with all North 7700, 5500, 5400, and 7600 series facepieces.

Key Features

• Ammonia + methylamine NIOSH approval: Specifically formulated sorbent for basic gas classes including NH₃ and methylamine — not interchangeable with acid gas or OV sorbents
• Integrated P100: Covers airborne particles simultaneously — correct for ammonia environments that also generate dust or aerosol (e.g., agricultural operations with dust co-exposure, biological material)
• Sold as a pair: Two cartridges per package for both positions on a North facepiece
• Narrow hazard profile: The 7584P100L is a specialized cartridge for documented NH₃/MA environments. For broader chemical coverage including OV and acid gas, the 75SCP100L is the more defensible choice when the hazard profile is not fully characterized

Applications — When to Use the 7584P100L

The 7584P100L is the correct cartridge when ammonia or methylamine is the confirmed primary gas hazard and particles are also present:

• Wastewater treatment: NH₃ off-gassing from sewage processing with aerosol co-exposure — P100 covers biological aerosol, NH₃ sorbent covers gas phase
• Agriculture and livestock: Poultry houses, hog confinements, and manure management where ammonia concentrations exceed OEL thresholds and organic dust is co-present
• Industrial refrigeration: Ammonia refrigerant leak response and maintenance where refrigerant particulate mist or oil aerosol may accompany vapor release
• Fertilizer manufacturing: Anhydrous ammonia handling and urea processing operations with dust co-exposure
• Fish processing: Trimethylamine and methylamine from fish protein decomposition — both covered by this cartridge's NIOSH approval

If organic vapors or acid gases are also documented: Use the 75SCP100L (OV+AG+NH₃+P100). If no particles are present, consider the gas-only N75004L for lower breathing resistance.

Compatible Respirators

All Honeywell North 7-series and N-series cartridges use the North bayonet twist-lock connector, compatible with the following facepieces.

North Cartridge & Filter Line — Full Comparison

All cartridges use the same North bayonet connector. Select based on documented hazard class.

Browse the complete lineup at Honeywell North Respirator Cartridges & Filters →

OSHA Compliance

• NIOSH approval required: All cartridges in OSHA-mandated programs must be NIOSH approved under 42 CFR Part 84
• Hazard assessment required: OSHA 1910.134(d)(1) — cartridge type must match the documented workplace hazard class
• Fit testing required: OSHA 1910.134(f)(2) — annual fit testing for any tight-fitting facepiece, regardless of cartridge type
• Cartridge change schedule: OSHA 1910.134(d)(3)(iii) — end-of-service-life for gas/vapor cartridges must be established before use
• Medical evaluation: OSHA 1910.134(e) — required before fit testing and before operational respirator use

Frequently Asked Questions

What does the 7584P100L protect against?

Ammonia (NH₃), methylamine, and P100 99.97% particle filtration. It does not protect against organic vapors, acid gases, mercury, or CO. For environments with OV + AG + NH₃, use the 75SCP100L.

Which respirators does the 7584P100L fit?

All North bayonet facepieces: North 770030 series (S/M/L), North 550030 series (S/M/L), North 54001 and 54001S, North 760008A and 760008AS.

Is the 7584P100L appropriate for poultry houses?

Yes — poultry houses with documented NH₃ above the OSHA PEL (50 ppm) combined with organic dust co-exposure are the core application for this cartridge. Confirm that the NH₃ concentration is within APF 10 (≤500 ppm) for half-mask use, or APF 50 (≤2,500 ppm) for full-face. Ammonia IDLH is 300 ppm — above this level, supplied-air is required.

What is the ammonia OSHA PEL and when do I need a respirator?

OSHA PEL for ammonia is 50 ppm (TWA). Respirators are required when engineering controls do not reduce exposure below PEL. A half-mask with APF 10 is appropriate for exposures up to 500 ppm (10× PEL). Above 300 ppm (IDLH), supplied-air is required — do not use air-purifying respirators at or above IDLH.

Can the 7584P100L be used for refrigerant ammonia leaks?

For routine maintenance and low-level leak response where concentrations are below IDLH (300 ppm): yes, with confirmed fit-tested facepiece. For emergency response or potential high-concentration releases, SCBA (self-contained breathing apparatus) is required per OSHA 1910.120 and NFPA 1.

How do I know when the 7584P100L is saturated?

Ammonia has a low odor threshold (~1–5 ppm) relative to its PEL (50 ppm) — if you detect ammonia odor through the respirator, the cartridge may be near end-of-service-life. However, OSHA requires a written change-out schedule under 1910.134(d)(3)(iii) — do not rely solely on odor. Establish a schedule based on monitoring data and sorbent capacity.

Is there a gas-only version of this cartridge without P100?

Yes — the N75004L provides OV + NH₃ without a P100 layer. It has lower breathing resistance and is correct when no particles are present. If both NH₃ and organic vapors are present without particles, the N75004L is the appropriate choice.

Does the 7584P100L cover hydrogen sulfide?

No — H₂S is an acid gas (low pH), not a basic gas. It is covered by the 7582P100L (AG+P100) or 7583P100L (OV+AG+P100). For environments with both H₂S and NH₃, the 75SCP100L is required.

Is fit testing required?

Yes — OSHA 1910.134(f)(2). Annual fit testing for the facepiece before operational use. Cartridge type does not change the fit test requirement.

Where can I find all North cartridges?

Browse the complete lineup at Honeywell North Respirator Cartridges & Filters →