Moldex R95 Respirators

Which Moldex R95 respirator should you buy in 2026?

Short answer: the moldex r95 respirators stocked here are two masks with one difference. Buy the Moldex 2740R95 for oil-aerosol particulate work — cutting fluids, machining mist, lubricant-laden dust — where an N95's charge-based media would degrade. Buy the Moldex 2840R95 when the same work comes with unpleasant but sub-hazardous smells: its carbon layer takes the edge off nuisance-level organic vapor. ⚠ The carbon layer is comfort, not protection — if a vapor is above its exposure limit you need a cartridge respirator from the half mask shelf, never a nuisance layer. Both are valved handystrap respirator designs, made in USA per their listings, sold in 10-packs. The wider oil-resistant field is compared on R95 respirators, the odor-relief category on nuisance relief respirators, the brand's other disposables under Moldex disposable respirators, and cartridge-based protection with the cartridge and filter selector and the wider respiratory protection department.

Editor's pick — Moldex 2740R95 HandyStrap
The plain oil-resistant workhorse: R95 filtration, Ventex valve, and the HandyStrap that lets the mask hang at your neck between tasks instead of living in a pocket. Read the Moldex 2740R95 listing.

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2740R95 vs 2840R95 — the whole decision in one table

Moldex R95 Disposable Respirators for Oil-Based Particulate Environments

R95 filtering facepiece respirators are NIOSH-approved for use in environments containing oil-based aerosols and particulates — a category excluded from N95 protection. The "R" designation (Resistant) indicates the respirator has been tested and certified to maintain at least 95% filtration efficiency against oil-based particles, making R95 respirators appropriate for painting operations, lubricant mist environments, metal machining with oil coolants, and other processes where oil aerosols are present in the breathing zone.

The key difference between N95 and R95 respirators lies in the filtration media. N95 media uses electrostatic charge to capture particles and can lose efficiency when exposed to oily aerosols that degrade the charge. R95 media is treated to resist this degradation, maintaining filtration performance in oily environments. NIOSH restricts R95 respirators to a maximum single shift use per filtering element when used in oil-aerosol environments — once exposed, the R95 must be discarded, not stored and reused.

Applications for R95 Respirators

Spray painting operations represent one of the most common R95 applications, where paint mist, solvent vapors, and isocyanate-containing coatings create respiratory hazards requiring both particulate and sometimes organic vapor protection. For applications involving both particulate and vapor hazards, combination OV/R95 or OV/P100 respirators on elastomeric half masks may be more appropriate than disposable R95 facepieces alone — the specific cartridge required depends on the substances present and their concentrations relative to NIOSH recommended exposure limits.

Moldex R95 Quality and Manufacturing

Moldex manufactures its R95 respirators in the United States using the same patented SpiroTek core technology found in its N95 product line. This internal dome structure maintains a breathing space between the filtering media and the wearer's face, reducing exhaled CO2 rebreathing and improving comfort during extended wear. Like all Moldex respirators, R95 models carry printed NIOSH approval numbers and manufacturing information for regulatory recordkeeping and compliance verification.

Our methodology

This brand shelf holds two products, and the page is built on exactly what their listings state: R95 class, Ventex valve, HandyStrap, 10-pack, made in USA, and — on the 2840 only — the nuisance-OV layer. Neither listing publishes its NIOSH TC approval number, so we say to check the printed approval on the facepiece and the NIOSH CEL rather than asserting one; filter-class definitions come from NIOSH 42 CFR Part 84 and use limits from OSHA 29 CFR 1910.134. An earlier version of this page linked a review of a "Moldex 2940R95" — a model that does not exist; the link has been corrected to the real 2840R95. We do not test respirators and hold no safety certification.

Why trust this page

WC Safety is an independent review site with no products of its own; purchase links go to Amazon and earn an affiliate commission at no extra cost to you. No manufacturer pays for placement — which is why this page can say plainly that the 2840's carbon layer is a comfort feature, that R95 costs more than N95 and buys nothing on dry dust, and that a phantom model number used to be linked here and is gone.

Frequently asked questions — Moldex R95 respirators

What is the difference between the Moldex 2740R95 and 2840R95?

One layer. Both are R95 oil-resistant valved HandyStrap masks; the 2840R95 adds a thin carbon layer for nuisance-level organic vapor — solvent smells, coating odors — while the 2740R95 is particulate only. Nuisance level means below the exposure limit: the carbon makes work less unpleasant, it does not make hazardous air safe. If you find yourself relying on it for protection rather than comfort, the job has outgrown a disposable mask.

When does an oil resistant respirator actually matter?

When the aerosol itself carries oil: machining coolant mist, lubricated compressed-air tools, oil-fogged industrial atmospheres. N95 media captures particles electrostatically, and oil coats those charges away, silently degrading filtration while the mask looks fine. R95 media resists that. ⚠ The flip side — recorded on this site's own R95 category page and worth repeating — is that on dry dust an R95 buys nothing over an N95 and costs more. Buy the letter for the aerosol you actually have.

How long can a Moldex R95 be worn once oil exposure starts?

NIOSH limits R-class filters to a single shift of use once exposed to oil aerosols — after that the filter must be discarded, not stored for tomorrow. In practice that makes the 10-pack the unit of planning: one mask per oil-exposed shift per worker. And if you are calculating whether a shift will stay under the limit, that is the signal to step up to a P-class filter or a cartridge respirator rather than manage the boundary.

Do these Moldex masks need a fit test?

For workplace use under a respiratory protection program, yes — a filtering facepiece is a tight-fitting respirator, and OSHA 1910.134 requires fit testing on the exact model before first use, plus a seal check at every donning. The HandyStrap helps compliance in a mundane way: a mask that hangs at the neck between tasks is a mask that goes back on, where one stuffed in a pocket deforms and stops sealing.

What does the R95 rating mean?

An R95 filter holds back at least 95% of airborne particles, and the R letter shows it is oil-resistant for up to 8 hours of use.

Are Moldex R95 respirators NIOSH-approved?

Check a true Moldex R95 for its NIOSH approval (TC) number printed by the brand and rating on the facepiece; that mark confirms the unit is approved.

Do Moldex R95 respirators need fit testing?

At work, yes. OSHA requires a fit test and a seal check at each donning, because a leak around the Moldex R95 lets unfiltered air reach you.

Is a valved or unvalved Moldex R95 the better pick?

The valve sheds heat for cooler, easier breathing but does not filter your exhale, so leave it out of sterile work; an unvalved R95 also shields nearby workers.

How long can a disposable Moldex R95 be used?

Wear it until it is damaged, soiled, hard to breathe through, or its seal gives way. Single-shift limits hinge on the employer and the contaminant present.

Will Moldex R95 respirators protect against gases or vapors?

No. Even oil-resistant, a filtering facepiece captures particulates only, so gases and vapors require chemical cartridges on a reusable respirator.

Can Moldex R95 respirators be reused or decontaminated?

They are single-use. Throw one out when wet, dirty, or damaged, as most cannot be cleaned without degrading the Moldex filter media or the fit.

What is the difference between N95, R95, and P100?

Letters track oil resistance (N none, R up to 8 hours, P oil-proof) and numbers track efficiency: 95% for the 95 class and 99.97% for the 100 class.

Are Moldex R95 respirators good for dust and particulate work?

Because the R rating tolerates some oil, they cover non-oil hazards like construction dust, sanding debris, pollen, and many bioaerosols; for heavy oily aerosols choose a P-rated model.

How should I store Moldex R95 respirators?

Keep them dry and clean in the original Moldex packaging until use, and never crush the facepiece, which distorts the seal and lowers protection.

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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 publish, with the gaps in that record marked. Last reviewed July 2026.