Honeywell North 7582P100L Review
WC Safety Editorial Verdict: 4.3/5
WC Safety Editorial Verdict — 4.3/5. The Honeywell North 7582P100L is a correctly-specified acid gas + P100 combination cartridge for facilities where inorganic acid gases (HCl, HF, SO₂, Cl₂, ClO₂, formaldehyde) are the documented primary hazard and organic vapors are confirmed absent — its NIOSH 42 CFR 84 approval and 99.97% P100 particulate layer cover both the gas and the dust/mist in one bayonet-mount cartridge. We dock it half a point only because the coverage is deliberately narrow: if a solvent or organic vapor could also be present, the broader 7583P100L OV+AG+P100 is the safer, better-value pick, and buyers should confirm the hazard against the how to choose a respirator cartridge guide before ordering.
Is the Honeywell North 7582P100L the Right Acid Gas + P100 Cartridge for Your Chemical Environment?
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The Honeywell North 7582P100L is a NIOSH-approved acid gas + P100 combination cartridge for environments where hydrogen chloride (HCl), hydrogen fluoride (HF), sulfur dioxide (SO₂), chlorine (Cl₂), chlorine dioxide (ClO₂), and formaldehyde (HCHO) are the primary respiratory hazards. The P100 component handles particulates at 99.97% efficiency simultaneously.
Editorial Verdict — 7582P100L: 4.3/5
Specialized acid gas + P100 for environments where acid gases are the documented primary hazard and organic vapors are confirmed absent. If OV may also be present, the broader 7583P100L OV+AG+P100 is better value at lower cost.
Specialized acid gas + P100 for environments where acid gases are the documented primary hazard and organic vapors are confirmed absent. If OV may also be present, the broader 7583P100L OV+AG+P100 is better value at lower cost.
Specifications
| Feature | Details |
|---|---|
| Model | 7582P100L |
| Gas Protection | Acid gases: HCl, HF, SO₂, Cl₂, ClO₂, HCHO |
| Particulate Protection | P100 — ≥99.97% at 0.3 microns |
| Sold As | Pair (L suffix) |
| NIOSH Approval | Yes — 42 CFR Part 84 |
| Mount | Honeywell North bayonet |
Acid Gases Covered by the 7582P100L
The 7582P100L uses a specialized sorbent material that targets inorganic acid gases. The gases named on its NIOSH approval — and the common contaminants that are not on it — are:
- HCl (Hydrogen chloride / hydrochloric acid mist) — metal pickling, semiconductor fabrication, chemical synthesis
- HF (Hydrogen fluoride) — glass etching, semiconductor manufacturing, petroleum refining
- SO₂ (Sulfur dioxide) — combustion processes, paper pulping, chemical plants
- Cl₂ (Chlorine gas) — water treatment, chemical manufacturing, pulp bleaching
- ClO₂ (Chlorine dioxide) — pulp and paper bleaching, water treatment and disinfection
- HCHO (Formaldehyde) — pathology and embalming labs, composite panel manufacturing
- Not on this approval: organic vapors, ammonia, mercury vapor, hydrogen cyanide (HCN) and hydrogen bromide (HBr) — an acid gas sorbent does not remove any of these
Important: the 7582P100L does NOT protect against organic vapors. If your chemical environment also contains organic solvents, use the 7583P100L OV+AG+P100 which provides broader coverage at similar or lower cost.
7582P100L vs. 7583P100L: Why the 7583 Usually Wins
| Attribute | 7582P100L vs. 7583P100L |
|---|---|
| Acid gas protection | Yes (both) |
| OV protection | No |
| P100 protection | Yes (both) |
| Price | Higher for less coverage |
| Best use case | Pure acid gas environments only |
In most industrial environments, organic vapors are present alongside acid gases. The 7583P100L adds OV protection at a lower price than the 7582P100L — making it the better default unless your industrial hygiene assessment has formally confirmed organic vapors are absent.
Primary Applications for the 7582P100L
- Metal pickling and surface treatment (HCl, H₂SO₄ mist, HF for aluminum)
- Semiconductor fabrication cleanroom processes involving HF, HCl
- Chlorine handling in water treatment plants (Cl₂)
- Paper and pulp bleaching operations (Cl₂, SO₂)
- Laboratory work with acid gas reagents without solvent exposure
- Formaldehyde-containing environments: pathology labs, embalming, composite panel manufacturing
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 acid gases does the 7582P100L protect against?
A: The 7582P100L provides NIOSH-approved protection against hydrogen chloride (HCl), hydrogen fluoride (HF), sulfur dioxide (SO₂), chlorine (Cl₂), chlorine dioxide (ClO₂), and formaldehyde (HCHO). It does not protect against organic vapors, ammonia, mercury vapor, hydrogen cyanide, or hydrogen bromide.
Q: Does the 7582P100L protect against organic vapors?
A: No — the 7582P100L is an acid gas + P100 cartridge. It does not contain the activated carbon required for organic vapor adsorption. If organic vapors may be present alongside acid gases, use the 7583P100L (OV+AG+P100) instead.
Q: When should I choose 7582P100L over 7583P100L?
A: Only when your industrial hygiene assessment has formally documented that organic vapors are not present in your work environment. If there is any uncertainty, the 7583P100L provides broader coverage at lower cost and is generally the preferred choice.
Q: Is the 7582P100L approved for hydrogen cyanide?
A: No — hydrogen cyanide is not on the 7582P100L approval. This is an acid gas + P100 cartridge, and HCN is not one of the gases it is approved for. HCN has an IDLH of 50 ppm and an OSHA PEL of 10 ppm TWA, so it has to be handled with a cartridge whose NIOSH approval names hydrogen cyanide — verify the gas list on the TC approval label before selecting anything for HCN work.
Q: Can I use the 7582P100L for formaldehyde exposure?
A: Yes — the 7582P100L provides NIOSH-approved formaldehyde protection under OSHA 1910.1048 (Formaldehyde standard). The OSHA PEL for formaldehyde is 0.75 ppm TWA; the STEL is 2 ppm. A half-face respirator with APF 10 protects up to 7.5 ppm TWA.
Q: How long do 7582P100L cartridges last?
A: Acid gas cartridge service life depends on the specific gas concentration, temperature, humidity, and breathing rate. OSHA requires a written change schedule. Replace immediately if you detect any acid gas odor or taste — most acid gases have IDLH values low enough that taste/odor detection means you are already approaching unacceptable exposure levels.
Q: What respirators are compatible with the 7582P100L?
A: All Honeywell North bayonet-mount respirators: the 5500 Series half-face, 7600 Series full-face, and 5400 Series full-face. Not compatible with 3M, MSA, or other brands.
Q: Does the 7582P100L protect against chlorine gas?
A: Yes — Cl₂ (chlorine gas) is one of the NIOSH-approved gases for the 7582P100L. OSHA PEL for chlorine is 1 ppm ceiling. APF 10 (half-face) provides protection up to 10 ppm. For chlorine concentrations above 10 ppm, use a full-face respirator (APF 50) with 7582P100L cartridges.
Q: Is the 7582P100L NIOSH-approved?
A: Yes — NIOSH-approved under 42 CFR Part 84 for acid gas + P100 protection when used with compatible Honeywell North bayonet respirators.
Q: What is the OSHA APF with 7582P100L cartridges?
A: APF 10 with a North half-face respirator; APF 50 with a North full-face respirator. The cartridge type determines the chemical coverage; the respirator type determines the protection factor.
Q: Can I use 7582P100L for sulfur dioxide in a paper mill?
A: Yes — SO₂ is a listed gas for the 7582P100L. However, paper mill environments often also contain organic compounds — verify with an IH assessment whether 7583P100L (with OV coverage) is more appropriate for your specific process.
Q: What happens if I use 7582P100L in an environment with organic vapors?
A: Organic vapors would pass through the acid gas sorbent unimpeded — the cartridge would provide no protection against them. This is a serious health hazard. Always verify the specific chemical hazards in your environment with an industrial hygiene assessment before selecting cartridges.
Q: Where can I buy the Honeywell North 7582P100L?
A: reviewed at WC Safety. Browse the full Honeywell North cartridge lineup.
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
- Leave the area, then replace if the wearer detects any odor, taste, or irritation through the cartridge — leave the contaminated area immediately and investigate the cause before returning — breakthrough, a poor face seal and a failed component all present the same way. Warning properties are not a permitted basis for the change schedule under OSHA 29 CFR 1910.134(d)(3)(iii)(B)
- 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.
Regulatory Standards for Acid Gas Environments
Several OSHA and regulatory standards specifically address the acid gases covered by the 7582P100L:
- HF (Hydrogen Fluoride): OSHA PEL 3 ppm TWA; ACGIH TLV 0.5 ppm ceiling; NIOSH IDLH 30 ppm. Semiconductor and glass etching operations are primary regulated applications
- HCl (Hydrogen Chloride): OSHA PEL 5 ppm ceiling; ACGIH TLV 2 ppm ceiling; NIOSH IDLH 50 ppm. Metal pickling and chemical synthesis
- Cl₂ (Chlorine): OSHA PEL 1 ppm ceiling; ACGIH TLV 0.1 ppm TWA; NIOSH IDLH 10 ppm. Water treatment and chlor-alkali operations
- SO₂ (Sulfur Dioxide): OSHA PEL 5 ppm TWA; ACGIH TLV 0.25 ppm TWA; NIOSH IDLH 100 ppm. Paper/pulp and combustion applications
- HCHO (Formaldehyde): OSHA PEL 0.75 ppm TWA; STEL 2 ppm; NIOSH IDLH 20 ppm. OSHA 1910.1048 sets stringent requirements for formaldehyde programs
For all acid gas applications, verify that your measured workplace concentrations multiplied by the appropriate APF remain within safe limits for the respirator type you select.
Additional Frequently Asked Questions
Q: Does the 7582P100L require a special written respiratory protection program for acid gas applications?
A: Yes — all atmosphere-supplying and air-purifying respirators used for protection against gases and vapors require a full written respiratory protection program per OSHA 29 CFR 1910.134. This includes exposure assessment, cartridge selection rationale, change schedule, fit testing, training, and program evaluation.
Q: Can the 7582P100L be used for swimming pool chlorination work?
A: Commercial pool chlorination uses high concentrations of chlorine gas or sodium hypochlorite. The 7582P100L provides Cl₂ protection — but verify that concentrations remain within the APF limits for your respirator type. For high-concentration chlorine work (chlorine gas leak response), SCBA or air-supplied respirators may be required.
Q: What is the difference between HCl gas and hydrochloric acid mist?
A: HCl gas is adsorbed by the acid gas sorbent in the 7582P100L; hydrochloric acid mist (fine droplets) is captured by the P100 filter. The 7582P100L addresses both forms because it combines gas-phase adsorption and particulate filtration. This is important for pickling operations where both HCl vapor and mist may be generated.
Q: Does the 7582P100L cover cyanide compounds?
A: Not in gas form. Hydrogen cyanide (HCN) gas is not on the 7582P100L approval. Cyanide salts that present as dust (sodium cyanide, potassium cyanide) are particles and are captured by the P100 layer, but any cyanide gas or vapor hazard needs a cartridge whose NIOSH approval names it — confirm with your industrial hygienist for specific compounds.
Q: How does the acid gas sorbent in the 7582P100L work?
A: Acid gas cartridges typically use impregnated activated carbon or specialized chemical adsorbents (such as alkali-impregnated carbon) that react with the acid gas to form stable salts. Unlike physisorption (used in standard OV cartridges), acid gas removal involves chemisorption — a chemical reaction that is more permanent and less reversible. This means acid gas capacity is harder to regenerate and cartridges should never be reused after breakthrough.
Browse and Compare on WC Safety
- Browse All Respirators & Respiratory Protection on WCSafety.com
- Honeywell North 5500 Series Half-Face Respirator
- Honeywell North 75FFP100 P100 Particulate Filter
- Honeywell North 7581P100L OV+P100 Large Cartridge
- Honeywell North 7582P100L Acid Gas + P100 Cartridge
- Honeywell North 7583P100L OV + Acid Gas + P100 Cartridge
- Honeywell North 7584P100L Ammonia/Methylamine + P100 Cartridge
- Honeywell North N75001L Organic Vapor Cartridge
- Honeywell North N75002L Acid Gas Cartridge
- Honeywell North 7506P100 Bayonet P100 Prefilter
- 3M 6001 Organic Vapor Respirator Cartridge
- 3M 6002 Acid Gas Respirator Cartridge
- 3M 6003 OV+Acid Gas Respirator Cartridge
- 3M 6004 Ammonia/Methylamine Respirator Cartridge
- 3M 60927 Mercury+OV+P100 Combination Cartridge
- 3M 60928 OV+Acid Gas+P100 Combination Cartridge
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.
Pros & Cons
Pros
- AG+P100 in one cartridge — handles acid gas and 99.97% particulate simultaneously, no separate filter or retainer to stock
- NIOSH-approved under 42 CFR Part 84 for named acid gases including HCl, HF, SO₂, Cl₂, ClO₂ and formaldehyde
- Sold as a matched pair (L suffix) so you always replace both sides on the same change-out schedule
- Honeywell North bayonet mount drops onto North 5500, 7700 and 5400 facepieces without adapters
- Magenta P100 banding makes the particulate rating easy to verify at a glance during pre-use inspection
- Combination design simplifies OSHA 1910.134 change-out tracking versus mixing a gas cartridge with a stacked pre-filter
Cons
- No organic vapor protection — useless against solvents, fuels and most paint/coating vapors
- Acid gas cartridges have no ESLI for most of these gases, so change-out must run on a calculated schedule not on smell or breakthrough
- North bayonet mount is brand-specific — will not fit 3M, Moldex or other facepieces
- Narrower coverage than the 7583P100L OV+AG+P100 for often similar shelf cost, so over-buying a single-gas cartridge can cost more per protected hazard
Who It's For
Buy it if:
- Workers in metal pickling, semiconductor fab, glass etching or chlor-alkali operations where acid gas is the confirmed primary hazard
- Water-treatment and pulp-bleaching crews exposed to chlorine or sulfur dioxide plus particulate
- Safety managers standardized on Honeywell North 5500/7700 half- and full-face facepieces
- Operations that want a single combination cartridge instead of stocking a gas cartridge plus a separate P100 disc and retainer
Look elsewhere if:
- Anyone facing organic vapors or solvents — choose the 7583P100L OV+AG+P100 or a dedicated OV cartridge instead
- Crews running 3M, Moldex or other non-North facepieces, since the bayonet mount is not cross-compatible
- Buyers who only need particulate protection and would overpay for unused acid gas sorbent
Related Resources
- moldex respirator cartridges and filters
- respiratory protection
- how to choose a respirator cartridge
- respirator cartridge esli guide
- respiratory protection complete guide
- honeywell north 7580p100
- honeywell north 75ffp100
- honeywell north 7581p100l
- honeywell north 7582p100l
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- honeywell north 7584p100l
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- honeywell north 75852p100l
Common questions
Sources. Requirements referenced here come from OSHA 29 CFR 1910 and the NIOSH recommendations. Where a consensus standard governs, the ANSI document is named in the text.
Related reference
Related on this site: honeywell north 7583p100l vs 3m 60923: organic vapor, acid gas & p100, honeywell north n75002l vs 7582p100l: acid gas vs acid gas/p100 — when, honeywell north 7583p100l vs 75scp100l: which cartridge should you, honeywell north n75001l vs n75002l: organic vapor vs acid gas, how to choose a respirator cartridge: complete selection guide, and honeywell north 7582p100l vs 7583p100l: ov/p100 vs ov/ag/p100.
Why trust WC Safety
WC Safety is an independent, affiliate-supported review site. It is not a retailer: it holds no inventory, takes no orders, and earns only from qualifying purchases through clearly marked links — which never changes what a product is rated to do. Standards language is taken from the regulation text directly, and ratings are reported as the manufacturer publishes them. We run no laboratory and perform no testing of our own. Where published sources disagree, we say so and plan on the conservative figure rather than the flattering one.
Our methodology
Figures come from the regulation and the published specification, in that order. Derated numbers are calculated, not estimated. Nothing here is presented as a measured result, because we measure nothing.
Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page compares what manufacturers and regulators publish, with the gaps in that record marked. Last reviewed August 2026.
Affiliate disclosure: as an Amazon Associate, WC Safety earns from qualifying purchases. WC Safety is not a retailer and takes no orders — links go to the seller, and the price you pay is unchanged.
Verify the gas list on the approval label. The authoritative list of gases a cartridge is approved for — and whether any are approved for escape only rather than for sustained work — is printed on the cartridge's NIOSH approval (TC) label. Confirm it against your hazard assessment before use.
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