Honeywell North 7581P100L vs 7583P100L: OV/P100 vs OV/AG/P100
Reviewed by the WC Safety Editorial Team — Last updated: June 2026.
If you run a Honeywell North respirator and need organic vapor protection with a P100 filter, the choice between the 7581P100L and 7583P100L comes down to one question: do you also face acid gas? This guide compares the North 7581P100L and North 7583P100L by contaminant, application, the limits of each and Honeywell North respirator compatibility — start with our Honeywell North cartridge guide if you want the full lineup. Getting this right matters: an under-rated cartridge leaves a real exposure gap, while an over-rated one adds cost, weight and breathing resistance you do not need, so the goal is the narrowest cartridge that fully covers your hazard.
Quick Answer
Choose the 7581P100L for organic vapor plus particulate — spray painting and solvent work with no acid gas.
Choose the 7583P100L if acid gases (chlorine, hydrogen chloride, sulfur dioxide) are also present alongside the organic vapor and dust.
Choose the 7583P100L if acid gases (chlorine, hydrogen chloride, sulfur dioxide) are also present alongside the organic vapor and dust.
Best Choice Summary
Best for painting and solvents: the 7581P100L. Best for solvent work that also involves acid gas: the 7583P100L, which adds acid-gas protection to the same OV/P100 base. If your chemistry is broader still — ammonia or formaldehyde — step up to the 75SCP100L multi-contaminant cartridge.
7581P100L vs 7583P100L: Side by Side
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Comparison Table
| Feature | 7581P100L | 7583P100L |
|---|---|---|
| Type | organic vapor / P100 cartridge | organic vapor / acid gas / P100 cartridge |
| Particulate (P100) | Yes | Yes |
| Organic vapor | Yes | Yes |
| Acid gas | No | Yes |
| Ammonia / formaldehyde | No | No |
| Connection | North bayonet | North bayonet |
What Each Cartridge Protects Against
North 7581P100L: organic vapors (solvent and paint fumes) plus particulate at the P100 level. It does not protect against acid gas, ammonia or formaldehyde.
North 7583P100L: organic vapors and acid gases (such as chlorine, hydrogen chloride and sulfur dioxide) plus particulate at the P100 level. It does not protect against ammonia or formaldehyde. For a primer on the rating system, see how to choose a respirator cartridge.
Key Differences
Both share the same organic vapor sorbent and the same P100 particulate filter and fit the same Honeywell North respirators. The single difference is that the 7583P100L adds an acid-gas sorbent, so it covers chlorine, hydrogen chloride and sulfur dioxide that the 7581P100L does not. The 7583P100L costs a little more for that broader chemistry.
Which One Should You Choose?
Run your hazard assessment. If the only gas is organic vapor — paints, coatings, adhesives, solvents — the 7581P100L is the correct, economical choice. If acid gases are also present, the 7583P100L is required, because the 7581P100L offers no acid-gas protection. When acid gas is possible but not confirmed, default to the 7583P100L.
Best Applications
7581P100L — best applications: Spray painting, solvent-based coatings and adhesives, parts cleaning and degreasing, and dusty solvent work with no acid gas. See the 7581P100L review for a closer look.
7583P100L — best applications: Solvent work combined with acid gases — etching, certain metal finishing, water treatment, and chemical handling where chlorine or sulfur dioxide is present alongside particulate. See the 7583P100L review for details.
When Not to Use Each Option
Do not use the 7581P100L where acid gas is present — it is not rated for it. Do not use the 7583P100L where ammonia or formaldehyde are the hazard — for those use the 75SCP100L or the N75004L ammonia cartridge. Neither should be used in oxygen-deficient atmospheres or where the contaminant or its concentration is unknown.
Compatibility with Honeywell North N-Series Respirators
Both the 7581P100L and 7583P100L use the Honeywell North bayonet connection and fit the North N-series cartridge respirators: the 5500 and 7700 series half masks and the 5400 and 7600 series full facepieces. They are not interchangeable with 3M bayonet or 3M Secure Click respirators. Always confirm the NIOSH approval number on the package matches your facepiece and assembly.
Related Cartridge Alternatives
| Alternative | Protection |
|---|---|
| North 7580P100 | P100 particulate |
| North 75SCP100L | Multi-contaminant + P100 |
If you do not need particulate, the gas-only N75001L (organic vapor) or N75003L (organic vapor/acid gas) are lighter; if your chemistry is broader, the 75SCP100L covers more contaminants than the 7583P100L.
Cost, Weight and Practical Considerations
Beyond protection, three practical factors separate these Honeywell North options: cost, weight and breathing resistance. The rule across the North range is consistent — the more a cartridge protects against, the more it costs and the heavier it sits on the facepiece. A standalone P100 particulate filter is the lightest and cheapest; adding organic vapor, then acid gas, then a full multi-contaminant sorbent each raises the price and the bulk. Every option carrying a “P100” designation also bonds a particulate filter to the sorbent, which adds some breathing resistance compared with a gas-only cartridge.
The buying principle that follows is simple: choose the narrowest cartridge that fully covers your contaminants. Buying more protection than your hazard assessment requires wastes money and adds weight and breathing effort you will feel over a shift; buying less leaves a real exposure gap. For crews that switch between tasks, a single broader cartridge can simplify stock and training even if it is heavier — but that is an inventory decision, not a protection shortcut. When wear time and comfort matter, a lighter, more targeted cartridge with scheduled changes is often the better call.
Service life is the other variable. None of these cartridges has a fixed hours rating: a P100 filter is replaced when breathing resistance climbs or it is soiled, while the gas and vapor sorbent must be changed on a documented schedule before breakthrough. Higher contaminant concentration, humidity and workload all shorten life. A broader multi-contaminant cartridge does not necessarily last longer — its sorbent is shared across more chemistries — so plan changes around your measured exposure, not the cartridge's breadth.
More Honeywell North Cartridge Guides
Build your full selection from these resources: the Honeywell North cartridge guide (the pillar for the whole North range), how to choose a respirator cartridge, and the Honeywell North respirator cartridge collection. Related reviews: 7581P100L review and 7583P100L review.
FAQ
Which is better, the Honeywell North 7581P100L or 7583P100L?
Neither is universally better — they cover different hazards. The 7581P100L is organic vapor plus P100; the 7583P100L adds acid gas. Choose the 7581P100L for painting and solvents, the 7583P100L when acid gas is also present.
Can I use the 7581P100L instead of the 7583P100L?
Only if there is no acid gas present. The 7581P100L covers organic vapor and particulate but not acid gas. If chlorine, hydrogen chloride or sulfur dioxide are in the air, you must use the 7583P100L.
Does the 7581P100L protect against paint fumes?
Yes — the North 7581P100L is rated for organic vapor, so it handles paint and solvent fumes.
Does the 7583P100L protect against paint fumes?
Yes — the North 7583P100L is rated for organic vapor, so it handles paint and solvent fumes.
Does the 7581P100L protect against organic vapor?
Yes. The 7581P100L is rated for organic vapor.
Does the 7583P100L protect against acid gas?
Yes — the North 7583P100L is rated for acid gases such as chlorine and hydrogen chloride.
Does the 7583P100L protect against ammonia?
No — the North 7583P100L is not rated for ammonia; for ammonia use the N75004L or the multi-contaminant 75SCP100L.
Do the 7581P100L and 7583P100L protect against mold and silica?
Yes — both. Mold spores and respirable silica are particulate, captured at the P100 level (99.97%).
Do the 7581P100L and 7583P100L include P100 protection?
Yes — both include a P100 particulate filter (99.97%).
Which Honeywell North respirators do the 7581P100L and 7583P100L fit?
Both fit Honeywell North N-series cartridge respirators using the North bayonet connection — the 5500 and 7700 series half masks and the 5400 and 7600 series full facepieces. They are not compatible with 3M respirators.
Are the 7581P100L and 7583P100L reusable?
They mount on reusable Honeywell North respirators, but the cartridges themselves are consumables replaced on a schedule. The facepiece is reusable; the cartridge media is not indefinitely reusable.
How long do the 7581P100L and 7583P100L last?
There is no fixed hours rating. Replace the P100 element when breathing becomes difficult or it is damaged or soiled, and any gas/vapor cartridge on a documented change schedule before breakthrough. Service life depends on concentration, humidity and workload.
When should the 7581P100L or 7583P100L be replaced?
Replace on your facility's change schedule, when breathing resistance rises, when the cartridge is damaged or contaminated, or when you detect odor breakthrough. Always follow your written respiratory protection program.
Is the 7581P100L or 7583P100L better for professional or DIY use?
Both are professional-grade Honeywell North components suitable for either. The choice is driven by the contaminant you face, not by whether the user is a professional or a DIYer.
Final Recommendation
For painting and solvent work the 7581P100L is the right Honeywell North combination; add acid-gas capability with the 7583P100L when chlorine or similar gases are present, and move to the 75SCP100L for the broadest multi-contaminant coverage. Confirm your selection against a documented exposure assessment and the Honeywell North cartridge guide.
Safety note: Cartridge selection depends on the specific contaminant, its airborne concentration, the exposure level, the oxygen level in the atmosphere, and applicable OSHA and NIOSH requirements. This guide is for research and does not replace a workplace hazard assessment or your written respiratory protection program. Never use air-purifying respirators in oxygen-deficient or IDLH atmospheres.
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.