Best Honeywell North Cartridge For Welding

Best Honeywell North Cartridge for Welding

Reviewed by WC Safety Editorial — Last updated: June 2026.

Quick Answer

Welding fume is particulate metal oxide, so the Honeywell North answer is a P100 filter — not a vapor cartridge — unless the metal is coated. The coating is the variable that decides whether you also need vapor and acid-gas protection.

For clean mild steel, a 7580P100 or 75FFP100 under your welding helmet is correct. The moment you weld galvanized, painted, or coated metal, move up to the 7583P100L. A vapor cartridge alone never works for welding — it ignores the fume, as explained in Organic Vapor vs P100.

Understanding the Hazard: Welding Fume

Welding fume is the cloud of microscopic metal-oxide particles created when the arc vaporizes metal and it instantly condenses in air. The particles are small enough to reach deep into the lungs, and their toxicity depends on the base metal and any coating.

How exposure occurs. Every arc-welding process — stick, MIG, TIG, flux-cored — generates fume, concentrated in the breathing zone when a welder leans over the work. Confined spaces, poor ventilation, and overhead welding sharply increase exposure. Coated metals add vapors and gases on top of the fume.

What is in the fume. Manganese (linked to Parkinson-like neurological effects), hexavalent chromium on stainless steel (a carcinogen regulated under OSHA 1910.1026), zinc oxide on galvanized steel (causing metal fume fever), nickel, iron oxide, and lead on painted or older metal. Arc ultraviolet light also generates ozone and nitrogen oxides.

Short-term risks: metal fume fever, airway irritation, and headaches. Long-term risks: manganism and other neurological harm, lung cancer from hexavalent chromium and nickel, siderosis, and chronic respiratory disease. Common environments: fabrication shops, structural steel, shipbuilding, pipe welding, maintenance, and manufacturing.

Which Honeywell North Filter Is Best for Welding?

Primary recommendation: a North P100 — the 7580P100 or 75FFP100. For welding clean mild steel and most general fabrication, the P100 captures the metal fume at 99.97 percent and is the correct, economical choice worn under the welding helmet.

Coated metals: the 7583P100L (OV + acid gas + P100). Galvanized, painted, primed, and solvent-cleaned metals release vapors and acid gases the coating produces, so the combination cartridge covers both the fume and the vapor. This is the right call whenever there is a coating on the work.

Solvent residue: the 7581P100L (OV + P100). When metal has been degreased and solvent vapor lingers, the OV/P100 combination covers the residual vapor alongside the fume.

Maximum protection: P100 on a PAPR welding helmet. For production welding, stainless (hexavalent chromium), and confined spaces, a PAPR delivers filtered air at a higher protection factor with far less heat and breathing effort. Do not rely on the vapor-only N75001L Check Price on Amazon → or the N75002L Check Price on Amazon → acid-gas cartridge alone — neither stops the particulate fume. When unsure, start with how to choose a respirator cartridge.

Honeywell North Cartridge Comparison Table for Welding

Best Honeywell North Filters for Welding — In Depth

Honeywell North 7580P100 / 75FFP100 (P100)

Protection: 99.97 percent P100 particulate. Ideal applications: stick, MIG, TIG, and flux-cored welding of clean mild steel and stainless. Strengths: excellent fume capture, low profile under a welding helmet, economical. Weaknesses: no vapor or gas protection. Choose it when the metal is clean and uncoated. Do not choose it when welding galvanized or painted metal. Read the 7580P100 review and 75FFP100 review.

Honeywell North 7583P100L (OV + Acid Gas + P100)

Protection: organic vapor and acid gas plus a P100 filter. Ideal applications: welding galvanized, painted, primed, or solvent-cleaned metal where coatings off-gas vapors and acid gases. Strengths: covers both the fume and the coating vapors in one cartridge. Weaknesses: heavier and costlier than a plain P100. Choose it when the work has any coating. Do not choose it when welding clean metal makes the P100 sufficient. Read the 7583P100L review.

Honeywell North 7581P100L (OV + P100)

Protection: organic vapor plus P100. Ideal applications: welding metal that has been degreased with solvents that still off-gas. Strengths: handles residual solvent vapor and metal fume together. Weaknesses: no acid-gas coverage for heavier coatings. Choose it when solvent residue is the added concern. Do not choose it when galvanizing or paint calls for the 7583P100L. Read the 7581P100L review.

Recommended Honeywell North Respirators for Welding

Welders integrate respiratory protection with the welding helmet, so the choice is usually a half mask under the helmet or a PAPR welding helmet. All North filters share the bayonet mount.

For most welding, a North 5500 or North 7700 half mask with a P100 worn under the welding helmet is the practical, economical setup, with the silicone-sealed 7700 favored for long shifts. For high-fume production, stainless hexavalent chromium, and confined spaces, a PAPR welding helmet delivers filtered air at a higher protection factor with less heat and breathing effort. A North 5400 or North 7600 full-face is an option when welding coated metal away from a fixed helmet. Compare half masks in the North 5500 vs 7700 comparison and full-face models in the North 5400 vs 7600 comparison, and browse North half masks and North full-face respirators. One filter platform serves the whole shop — see the Honeywell North cartridge guide.

Common Cartridge Selection Mistakes for Welding

1. Using a vapor cartridge for welding fume. A vapor cartridge does nothing for particulate metal fume. Welding always needs P100 first; vapor sorbent is an add-on only for coated metals.

2. Welding galvanized or painted metal with a plain P100. Coatings off-gas vapors and acid gases. For galvanized, painted, primed, or solvent-cleaned metal, use the 7583P100L, not a bare P100.

3. Settling for an N95 on production welding. N95 is the minimum for light intermittent work only. Manganese, hexavalent chromium, and zinc oxide demand the 99.97 percent efficiency of a P100.

4. Expecting a cartridge to remove ozone. Air-purifying cartridges do not reliably capture ozone from the arc. Control ozone with ventilation, and never weld near chlorinated solvents.

5. Ignoring fit testing and the seal under the helmet. A leaking half mask under a welding helmet lets fume bypass the filter. Fit test under OSHA 1910.134(f) and keep the seal clean-shaven.

6. Running a fume-clogged filter. Heavy welding loads P100 filters fast. Replace on rising breathing resistance rather than pushing a clogged filter through another job.

When Should You Replace North Welding Filters?

The P100 layer loads mechanically with fume and is replaced on resistance and condition; the vapor layer of a 7583P100L follows an odor-and-schedule rule. Heavy welding loads filters quickly.

Given the carcinogens in welding fume, change P100 filters early rather than running them to maximum loading. For the full methodology, see how long do respirator cartridges last and OSHA 29 CFR 1910.134; for the color code (P100 magenta), see the respirator cartridge color chart.

Related reference

Neighbouring references 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 7506r95 vs 7580p100: r95 vs p100 filter comparison, honeywell north 7580p100 vs 7581p100l: p100 filter or ov/p100?, honeywell north 7580p100 vs 75scp100l: p100 filter vs multi-gas, and honeywell north 7583p100l vs 75scp100l: which cartridge should you.

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.

Frequently Asked Questions