Honeywell North 5400 Series Full Face Respirator

Full Facepiece Air-Purifying Respirator · Assigned Protection Factor 50 · North Bayonet Cartridge Connection · 4 Builds

Which Honeywell North 5400 series build should you buy?

Short answer: pick your size first, then decide whether you need the welding lens — because that second choice roughly doubles the price and the product title does not mention it. The Honeywell North 5400 series comes in four builds: small and medium/large in the standard configuration, and small and medium/large again as welding versions with an integrated welding lens. If you are not welding, the standard build is the one you want and the welding versions are money spent on a lens you will not use.

This collection holds one product with those four variants, so this page is a selection guide rather than a grid to browse. The full listing with all four options is the 5400 Series full face respirator, and our long-form assessment is the 5400 Series review.

Why choose a full facepiece over a half mask at all?

One number. Under the assigned protection factor table in OSHA 29 CFR 1910.134, a full facepiece air-purifying respirator is assigned 50. A tight-fitting half mask is assigned 10, and so is every disposable filtering facepiece. The cartridges can be identical — the facepiece is what changes the number.

An assigned protection factor of 50 means the respirator is expected to reduce your exposure to one fiftieth of the ambient concentration, so the practical trigger for stepping up is arithmetic: when a measured airborne concentration exceeds ten times the permissible limit, a half mask no longer covers it and a full facepiece does, up to fifty times. Our assigned protection factors reference works through the table, and how to choose a half mask covers the tier below.

The second reason is the lens. A full facepiece covers your eyes with the same seal that covers your airway, which matters for anything that irritates eyes or splashes — and it removes the constant nuisance of safety glasses fighting a respirator seal. If your work requires a specific impact rating for eye protection, confirm the ANSI Z87.1 marking on the unit itself rather than assuming it, and note that prescription spectacles need a proper in-mask kit rather than being worn under the seal — see respirators with glasses.

What is the difference between the standard and welding builds?

An integrated welding lens, and roughly double the price. This is the single most important thing to know before you use the variant dropdown, because the listing title names only the two standard part numbers and gives no hint that half the range is a welding product.

The standard builds are the small and the medium/large. The welding builds carry a W in the part number — small welding and medium/large welding — and add a welding lens to the same facepiece. Everything else is shared: same series, same North's own connector cartridge connection, same assigned protection factor of 50.

Two cautions worth stating plainly. First, if you are not welding, this is a straightforward overspend — you are buying a shade lens you will never look through. Second, a welding respirator variant is not a substitute for proper arc protection decisions; the shade you need depends on the process and amperage, and a welding helmet remains its own decision. If welding is your actual application, read the North cartridge guide for welding alongside welding helmets, because fume filtration and arc protection are separate problems.

How does the Honeywell North 5400 series compare with the North 7600?

Both are full facepieces, both are assigned a protection factor of 50, and both take the same North's own connector cartridges. So the comparison is not about protection — it is about materials, harness and price.

The 7600 series uses a premium silicone facepiece with a five-strap harness, which is the upgrade you buy for comfort across long shifts and for durability in a demanding rotation. The 5400 is the cost-conscious route to the same assigned protection factor. If your program is being priced per unit across a crew and the wear time is moderate, the 5400 does the regulatory job for less. If people are in the mask most of the day, the silicone and the five-point harness earn their premium.

Our head-to-head is Honeywell North 5400 vs 7600, and against the main 3M alternative see 5400 vs 3M 6800 and 3M vs Honeywell full face. The 7600 series collection and the wider Honeywell North full face range sit alongside this one.

Which cartridges fit the Honeywell North 5400 series?

North's own connector cartridges, mounted on both sides. That connection is shared across the North full facepiece and half mask ranges, which is the practical argument for standardizing a site on one brand of facepiece — one cartridge inventory covers everything.

The facepiece decides your assigned protection factor; the cartridge decides which contaminants you are protected against, and the two questions are independent. A full facepiece with the wrong cartridge is not protection. Match the cartridge to the actual contaminant using how to choose a respirator cartridge and the Honeywell North cartridge guide, then buy media from North filters and cartridges. The North half mask range uses the same bayonet fitting if you need both tiers on one site.

How do the four Honeywell North 5400 series builds compare?

All four share the same assigned protection factor and the same cartridge connection. The price spread is the welding lens and the size, nothing else — there is no protection difference between the cheapest and most expensive build on this table.

How do you size and fit a 5400 series facepiece?

The series offers two sizes — small and medium/large — so most adults land in medium/large and smaller faces need the small. That is a coarser range than some competitors offer in three sizes, and it is a genuine consideration if you are fitting a crew with varied face shapes.

Sizing is not a comfort preference on a tight-fitting respirator; it is the difference between having an assigned protection factor and having none. Every wearer needs a fit test on the specific make, model and size they will actually use, plus a medical evaluation before first use. Facial hair crossing the sealing surface disqualifies the respirator no matter what a previous fit test said — see respirators with a beard. If a clean seal is not achievable, the route is a loose-fitting powered hood rather than a full facepiece worn over stubble.

What about the NIOSH approval number?

Confirm it on the unit and against the source. NIOSH certifies respirators under 42 CFR Part 84 and publishes every approval in the Certified Equipment List, which is the authoritative record — the approval number is printed on the respirator or its packaging and can be looked up directly.

We are deliberately not printing an approval number on this page. Some copy circulating for this series cites a schedule designation we could not verify against the NIOSH schedules we can account for, and substituting our own guess would be the same error in the opposite direction. What we can state from the OSHA table, independently of any approval number, is the assigned protection factor of 50 that applies to any NIOSH-certified full facepiece air-purifying respirator. For the certification framework itself see 42 CFR Part 84 certification.

Editor's pick: the standard medium/large 54001 on the 5400 Series listing — it is the build that delivers the full assigned protection factor of 50 at the series' entry price, and it fits the majority of adult faces. Choose the small if you fit smaller, and only take a W build if you are genuinely welding.

Affiliate disclosure: WC Safety is an independent review site. As an Amazon Associate we earn from qualifying purchases made through links on this page, at no extra cost to you. We do not sell products directly, and no brand paid for placement.

Our methodology: what is on this page, and what it cannot do

We counted this collection against the storefront rather than trusting the heading: it holds exactly one product, so we wrote a variant selection guide instead of pretending to a range. We read that product's variants before describing it, which is how the welding builds surfaced — they are invisible from the title and account for the entire price spread. Assigned protection factors are quoted from the OSHA table rather than from product copy. We have not printed a NIOSH approval number here, because the one in circulation for this series did not match any schedule we could verify and guessing a replacement would be no better. And we route bare model-number searches to the product page rather than competing with it, because this product already has more URLs pointed at it than its search demand supports.

Honeywell North 5400 Series FAQ

What is the difference between the 54001 and the 54001W?

The W build adds an integrated welding lens to the same facepiece and costs roughly double. Everything else is shared — same series, same North's own connector cartridges, same assigned protection factor of 50.

What sizes does the 5400 series come in?

Two: small and medium/large, each available in a standard and a welding build. Most adults fit medium/large. A fit test on the specific size is what determines whether you actually have protection.

What is the assigned protection factor of the Honeywell North 5400?

50, as for any NIOSH-certified full facepiece air-purifying respirator under the OSHA table. That compares with 10 for a half mask or any disposable, with identical cartridges.

Is the 5400 better than the North 7600?

Not in protection — both are assigned 50 and both take the same North's own connector cartridges. The 7600 uses a premium silicone facepiece with a five-strap harness for comfort and durability; the 5400 is the lower-cost route to the same protection factor.

Which cartridges fit the Honeywell North 5400?

North's own connector cartridges, mounted on both sides, shared with the North half mask and full facepiece ranges. The facepiece sets your protection factor; the cartridge determines which contaminants you are protected against.

Do I need the welding version if I only weld occasionally?

Probably not. The welding lens is a fixed part of that build, so occasional welders usually do better with a standard facepiece plus a separate welding helmet, which is a decision driven by process and amperage.

Does a full facepiece replace safety glasses?

It covers your eyes with the same seal that covers your airway, which removes the glasses-versus-seal conflict. Where a specific impact rating is required, confirm the ANSI Z87.1 marking on the unit rather than assuming it.

Can I wear prescription glasses with a 5400?

Not under the seal. Spectacle arms crossing the sealing surface break the seal. A full facepiece needs a proper in-mask spectacle kit designed for it.

Do I need a fit test for a full face respirator?

Yes, on the specific make, model and size you will use, plus a medical evaluation before first use. Facial hair crossing the sealing surface disqualifies the respirator regardless of any earlier fit test.

When should I move from a half mask to a full facepiece?

When measured airborne concentration exceeds ten times the permissible limit, since a half mask is assigned 10. A full facepiece covers up to fifty times, and beyond that you are into powered or supplied-air territory.

What NIOSH approval number does the 5400 carry?

Check the number printed on the respirator against the NIOSH Certified Equipment List. We are not reprinting one here, because the designation circulating for this series did not match any schedule we could verify.

How many products are in this collection?

One, with four variants. This page is a variant selection guide rather than a grid — the wider Honeywell North full face range and the general full facepiece category are linked above.

Where the 5400 series full facepiece sits in the range

Searches for honeywell north 5400, north 5400 full face respirator and honeywell north 5400 full face respirator all land on the same four builds covered above. A 5400 series full facepiece is the entry point to full facepiece protection in the North line: below it sit the half masks at an assigned protection factor of 10, alongside it the 7600 at the same 50 with better materials, and above it the powered and supplied-air options for exposures a cartridge cannot handle. For the cross-brand picture see full face mask respirators and best Honeywell North full face respirators.

Why trust WC Safety on the Honeywell North 5400?

WC Safety reviews workplace PPE full-time as an independent affiliate site — we do not sell products, hold no inventory, and accept no paid placements. On a page covering a single product, the easy version leans on spec sheets. This one instead leads with the thing that costs buyers money: two of the four variants are welding builds at roughly double the price, and nothing in the product title says so. It also declines to print a NIOSH approval number, because the designation circulating for this series does not match a schedule we could verify and inventing a replacement would be worse than saying nothing — the assigned protection factor of 50 is quoted from the OSHA table instead, which we can stand behind. And it says plainly that the more expensive 7600 offers no protection advantage over this one. Standards referenced are OSHA 29 CFR 1910.134 and NIOSH 42 CFR Part 84. Reviewed by Steven Eaton, WC Safety editor. Last reviewed: July 2026.