Honeywell North 7584P100L Ammonia + P100 Cartridge Review: Specialized Protection for NH₃ Environments
Is the Honeywell North 7584P100L the Right Ammonia + P100 Cartridge for Your NH₃ Environment?
The Honeywell North 7584P100L is a NIOSH-approved ammonia (NH₃) and methylamine + P100 combination cartridge — the specialized choice for refrigeration maintenance, wastewater treatment, poultry processing, agricultural facilities, and any environment where ammonia is the documented primary gas hazard. It provides 99.97% P100 particulate protection alongside ammonia adsorption in a single North bayonet cartridge.
Editorial Verdict — 7584P100L: 4.5/5
Correct choice when ammonia is the documented primary hazard. If organic vapors or acid gases also present, the 75SCP100L covers more ground at a better value.
Correct choice when ammonia is the documented primary hazard. If organic vapors or acid gases also present, the 75SCP100L covers more ground at a better value.
Specifications
| Feature | Details |
|---|---|
| Model | 7584P100L |
| Gas Protection | Ammonia (NH₃) + methylamine |
| Particle Protection | P100 — ≥99.97% |
| Sold As | Pair |
| NIOSH Approval | Yes — 42 CFR Part 84 |
Primary Ammonia Applications
- Industrial refrigeration: R-717 (ammonia refrigerant) system maintenance, leak response
- Wastewater treatment: ammonia release from sewage processing, stripping operations
- Poultry/livestock farming: confined animal feeding operations, manure storage
- Fertilizer manufacturing: ammonia-based fertilizer production and handling
- Chemical manufacturing: ammonia synthesis, ammonia-based chemical processing
7584P100L vs. 75SCP100L: When to Upgrade
The 75SCP100L adds OV and acid gas protection to the ammonia + P100 coverage — and often at a similar price. If your ammonia environment also has any organic solvent or acid gas co-exposure, the 75SCP100L is the better choice.
Compatible with all Honeywell North bayonet respirators including the North 5500 Series half-face, North 7600 and 5400 Series full-face respirators. Not compatible with 3M bayonet respirators — Honeywell North and 3M use different mounting systems.
Browse all Honeywell North respirator cartridges or see the full respirator cartridge and filter selection at WC Safety.
Frequently Asked Questions
Q: What does the 7584P100L protect against?
A: NIOSH-approved for ammonia (NH₃), methylamine, and airborne particles at P100 (99.97%) efficiency. Does not protect against organic vapors, acid gases, or other chemicals not listed in the NIOSH approval.
Q: Is the 7584P100L good for refrigeration maintenance?
A: Yes — R-717 (ammonia refrigerant) is the primary gas, making the 7584P100L appropriate for refrigeration system inspection and maintenance. For emergency leak response at high concentrations, full-face respirator with APF 50 provides better protection.
Q: What is the OSHA PEL for ammonia?
A: OSHA PEL for ammonia is 50 ppm TWA (8-hour). The ACGIH TLV is 25 ppm TWA. IDLH is 300 ppm. A half-face respirator with 7584P100L (APF 10) provides protection up to 500 ppm; a full-face (APF 50) up to 2,500 ppm.
Q: Does the 7584P100L protect against organic vapors?
A: No — the 7584P100L is ammonia + P100 only. For environments with both ammonia and organic vapors, use the 75SCP100L which provides OV + AG + AM + P100 coverage.
Q: What respirators are compatible with the 7584P100L?
A: All Honeywell North bayonet respirators: 5500 Series half-face, 7600 Series full-face, 5400 Series full-face. Not compatible with 3M.
Q: How do I know when to replace 7584P100L cartridges?
A: Replace on any ammonia odor detection (ammonia has a very detectable odor at low concentrations — this serves as an effective breakthrough indicator). Also replace per your written change schedule. OSHA requires a documented cartridge change schedule.
Q: Is the 7584P100L appropriate for poultry processing facilities?
A: Yes — ammonia from poultry operations is the primary gas hazard, making the 7584P100L appropriate. If disinfectants or cleaning chemicals are also used, verify whether OV or acid gas protection is also needed (consider 75SCP100L).
Q: Can the 7584P100L be used for wastewater treatment?
A: Yes — ammonia is a common gas in wastewater treatment. However, wastewater environments often contain H₂S and other gases — verify with an IH assessment whether additional gas coverage is needed beyond ammonia.
Q: Does the 7584P100L protect against hydrogen sulfide?
A: No — H₂S is not covered by the 7584P100L. Wastewater and manure environments often produce H₂S alongside ammonia. In these mixed-gas environments, consult your industrial hygienist for the appropriate cartridge combination.
Q: Is the 7584P100L sold as a pair?
A: Yes — the L suffix indicates it is sold as a matched pair for use on respirators requiring two cartridges.
Q: What is the OSHA APF with 7584P100L cartridges?
A: APF 10 (half-face) or APF 50 (full-face) depending on the respirator type used.
Q: Where can I buy the Honeywell North 7584P100L?
A: Available at WC Safety. See all Honeywell North cartridges.
OSHA Assigned Protection Factors: Respirator Type Determines Protection Level
A critical and frequently misunderstood principle: the protection factor (APF) is determined by the respirator type, not the cartridge. The cartridge determines which chemicals are protected against; the facepiece type determines how much protection is provided relative to the permissible exposure limit (PEL).
| Respirator Type | OSHA APF (29 CFR 1910.134 App A) |
|---|---|
| Half-face air-purifying (e.g., North 5500 Series) | APF 10 — protects up to 10× the PEL |
| Full-face air-purifying (e.g., North 7600/5400 Series) | APF 50 — protects up to 50× the PEL |
| Powered air-purifying (PAPR), half-face | APF 50 |
| Powered air-purifying (PAPR), full-face/hood | APF 1000 |
Example: if the OSHA PEL for a solvent is 100 ppm, a half-face respirator (APF 10) with the appropriate cartridge protects up to 1,000 ppm; a full-face (APF 50) protects up to 5,000 ppm. If your measured air concentration exceeds the APF × PEL product, you need a higher APF respirator or must implement engineering controls to reduce concentration.
OSHA 1910.134 Cartridge Change Schedule Requirements
OSHA 29 CFR 1910.134(d)(3)(iii)(B) requires that atmospheres immediately dangerous to life or health (IDLH), oxygen-deficient atmospheres, and environments with gas or vapor cartridges must have a cartridge change schedule based on objective information. Specifically, the standard requires:
- A written change schedule based on objective data — measured concentrations, published service life tables, or ESLI (end-of-service-life indicator) performance data
- The change schedule must address the specific chemicals present, their concentrations, temperature, humidity, and work rate
- Immediate replacement when the wearer detects any odor, taste, or irritation through the cartridge — this indicates breakthrough and potential saturation
- Cartridges must be replaced before being stored and reused — carbon that has partially adsorbed contaminants may release them during storage and re-entry
- Written records of the change schedule must be made available to employees upon request
Failure to maintain a written cartridge change schedule is one of the most commonly cited OSHA violations in respiratory protection programs. If you are building or auditing a respiratory protection program, the OSHA Small Entity Compliance Guide for Respiratory Protection (OSHA 3384) provides a detailed walkthrough of change schedule requirements.
OSHA Regulations for Ammonia: What You Need to Know
Ammonia is regulated under OSHA 29 CFR 1910.1000 (Table Z-1). Key exposure limits:
- OSHA PEL: 50 ppm TWA (8-hour)
- ACGIH TLV: 25 ppm TWA; 35 ppm STEL
- NIOSH REL: 25 ppm TWA; 35 ppm STEL
- NIOSH IDLH: 300 ppm — IDLH concentrations require SCBA or air-supplied respirators, not APR cartridges
The OSHA 50 ppm PEL is significantly above the ammonia odor threshold (typically 5-20 ppm), meaning workers can detect ammonia well before reaching dangerous concentrations. This strong warning property makes ammonia one of the more manageable gas hazards from a cartridge change schedule perspective — odor detection is a reliable signal for cartridge replacement.
However, olfactory fatigue can reduce ammonia odor perception with prolonged exposure. A written change schedule based on measured concentrations should supplement odor detection — not replace it.
Refrigeration Safety: ANSI/ASHRAE 15 and Ammonia Refrigerant (R-717)
Industrial refrigeration using anhydrous ammonia (R-717) is governed by ANSI/ASHRAE 15 (Safety Standard for Refrigeration Systems) and requires:
- Respiratory protection equipment appropriate for the maximum credible leak scenario at the work location
- Written emergency response procedures including evacuation and rescue respirator availability
- Fixed or portable ammonia detection systems with audible alarms — reduces reliance on cartridge respirators for emergency response
- Personnel working within 25 feet of refrigeration system components should have access to appropriate respirators when system is online
For maintenance technicians performing routine inspection and valve work on R-717 systems, the 7584P100L on a North half-face respirator provides appropriate protection at typical ambient ammonia concentrations encountered during non-emergency maintenance. For emergency leak response, SCBA is required per ANSI/IIAR standards.
Selecting the Right Honeywell North Respirator for Your Cartridge
North bayonet cartridges work with three respirator product lines. Selecting the correct respirator determines your protection level:
- North 5500 Series half-face: APF 10; available in S, M, L sizes; silicone facepiece; recommended for most industrial environments with exposures ≤10× PEL
- North 7600 Series full-face: APF 50; panoramic lens; appropriate for IDLH environments below IDLH concentration when combined with correct cartridges; also provides eye protection
- North 5400 Series full-face: APF 50; traditional lens design; often used in specialty industrial applications requiring specific optical characteristics
For all respirator-cartridge combinations, the facepiece must be NIOSH-approved as part of an approved assembly. Verify compatibility in the NIOSH NPPTL Certified Equipment List (CEL) before deploying a new combination in your respiratory protection program.
Additional Frequently Asked Questions
Q: What is the ammonia IDLH and what respirator is required at IDLH?
A: The NIOSH IDLH for ammonia is 300 ppm. At IDLH concentrations, APR (air-purifying respirator) cartridges are not sufficient — SCBA (self-contained breathing apparatus) or combination-mode supplied-air respirators are required. The 7584P100L is appropriate for concentrations within APF limits (half-face APF 10: up to 500 ppm PEL-equivalent; but never at or above IDLH without SCBA).
Q: Can the 7584P100L be used for anhydrous ammonia loading/unloading?
A: Ammonia loading and unloading operations can generate high momentary concentrations during connection/disconnection of transfer hoses. For routine well-controlled transfers with confirmed concentrations below 50 ppm, a half-face 7584P100L may be sufficient. For operations with uncertain concentration control, a full-face with 7584P100L (APF 50) or SCBA is more appropriate.
Q: Does the 7584P100L cartridge have a service life indicator?
A: No — the 7584P100L does not have an ESLI (end-of-service-life indicator). Change schedule must be based on: (1) odor detection (immediate replacement); (2) written schedule derived from measured concentration, temperature, humidity, and published service life data; (3) shift or time-based limits in your respiratory protection program.
Q: Is the 7584P100L appropriate for confined space entry in ammonia environments?
A: Confined space entry with ammonia hazards requires careful evaluation. If ammonia concentrations could reach IDLH (300 ppm) or if oxygen deficiency is a concern, SCBA or supplied-air respirators are required. The 7584P100L is suitable for ammonia-hazardous non-IDLH confined space entry when concentrations have been measured and remain within APF limits.
Q: What happens if I accidentally use an OV cartridge (like N75001L) in an ammonia environment?
A: Standard OV activated carbon has very poor adsorption efficiency for ammonia. Using an OV cartridge in an ammonia environment provides essentially no ammonia protection. This is a serious safety error — always verify cartridge type matches the documented chemical hazard before use.
Shop and Learn More on WCSafety.com
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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.