What does the exhalation valve on the 2840R95 do?

The exhalation valve opens when you breathe out, allowing warm humid air to exit directly rather than passing back through the filter media. This reduces heat and moisture buildup inside the mask — a significant comfort advantage during extended or physically demanding wear. Inhalation closes the valve, so all inhaled air is filtered normally.

Does the valve on the 2840R95 reduce filtration efficiency?

No. The exhalation valve does not affect inhalation filtration efficiency — the 2840R95 still filters inhaled air at the rated N95/R95/P100 level. The valve only controls exhaled air routing. Note: because exhaled air is not filtered, valved respirators are not appropriate as source-control devices (e.g., in surgical environments or when protecting others from the wearer).

Is a valved respirator like the 2840R95 acceptable for source control?

No. A valved respirator directs exhaled air outward unfiltered and is not appropriate where the wearer must also protect others (surgical settings, some healthcare environments). Facility policies may prohibit valved masks in sterile or at-risk patient areas. For source-control requirements, use an unvalved N95 or a surgical N95.

What does nuisance-relief mean on the 2840R95?

The nuisance-relief layer on the 2840R95 is a thin activated carbon or sorbent layer added to reduce nuisance-level discomfort from low concentrations of organic vapors, acid gases, or other odorous compounds. It is NOT rated for IDLH (Immediately Dangerous to Life or Health) concentrations or chemical protection at regulatory exposure limits — it only reduces odor discomfort. Browse all nuisance-relief respirators .

Does the nuisance-OV layer on the 2840R95 protect against organic vapors?

No. The nuisance OV layer provides comfort relief at low concentrations but is not a replacement for a rated organic-vapor cartridge. For environments with organic vapor exposures at or above OSHA PELs, you need a half-face or full-face respirator with a rated OV cartridge. The 2840R95's nuisance relief is for odor comfort only.

Can the 2840R95 be used in chemical environments?

The 2840R95 is rated for particulate filtration (N95 or R95 class); the nuisance layer adds odor-reduction comfort only. For chemical protection at regulated levels, you need a respirator with rated chemical cartridges. Use the 2840R95 only in environments where the particulate hazard is the primary concern and vapor concentrations are at nuisance-level only.

Is the 2840R95 NIOSH-approved for oil mist?

Yes. The 2840R95 holds NIOSH R95 approval under 42 CFR 84 Subpart K, confirming ≥95% filtration of both non-oil and oil-resistant particulates. The R in R95 means the mask is approved for oil-based aerosols for up to one work shift (8 hours of continuous oil aerosol exposure). Compare classes in our N95 vs P100 guide .

What is the difference between R95 and N95 for the 2840R95?

The 2840R95 is rated R95 — oil- resistant (one shift) — while N95 masks are rated for non-oil environments only. If you spray paint, work with cutting fluids, or handle oil mist, the R95 class is the correct minimum; for extended or heavy oil exposure, step up to a P100 (oil-proof, no time limit). Browse all R95 respirators .

Can the 2840R95 be used for spray painting?

Yes, the 2840R95's R95 rating covers oil-based aerosols including spray paint and primer mist for up to one shift. OSHA recommends pairing it with forced-air ventilation in enclosed spray environments. For longer exposures or lacquers with solvent vapors, also consider an OV cartridge — the R95 particle filter alone does not capture organic vapors.

Does the 2840R95 require a fit test?

Yes. OSHA 29 CFR 1910.134 mandates a fit test before first workplace use of any tight-fitting respirator. See our fit testing guide for the qualitative and quantitative options. Proper seal at the nose bridge and chin is required for rated R95 performance.

How long can I use the 2840R95 in an oil mist environment?

The R95 class is approved for up to one work shift of oil aerosol exposure; after that, oil can degrade the electret filter media and reduce efficiency below 95%. Discard the 2840R95 at end of shift if used in oil-mist conditions, or sooner if breathing resistance increases noticeably.

What does the 2840R95 NOT protect against?

The 2840R95 protects against oil and non-oil particulates only — it does not filter gases, vapors, or chemical vapors such as organic solvents or acid gases. Nuisance-relief versions add a thin sorbent layer for comfort only, not IDLH chemical protection. For vapor hazards, use a half-face or full-face respirator with an OV or AG cartridge. Amazon purchases via WC Safety links earn us an affiliate commission at no extra cost. Why trust this 2840R95 page? WC Safety operates as an independent industrial PPE review site stocking the Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve and its siblings for safety managers, procurement teams, and field supervisors. Specifications are cross-referenced against the NIOSH 42 CFR 84 approval certificate on the NIOSH Certified Equipment List and the Moldex Technical Data Sheet. Disclosed: WC Safety earns Amazon affiliate commissions on ou

Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve

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Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve

Name: Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve
Brand: Moldex
SKU: 2840R95
Price: 97.15 USD
Availability: InStock

Moldex SKU: 2840R95 Disposable Respirator GTIN: 0092311274003

$97.15

Final price set by Amazon · may vary

Short answer: the moldex 2840r95 handystrap r95 respirator is covered below on the specifications its own listing publishes, the standards it is certified to, and who it suits. WC Safety Editorial Pick — Moldex 2840R...

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10-pack 2840r95 disposable-respirator handystrap made-in-usa moldex niosh nuisance-ov

Short answer: the moldex 2840r95 handystrap r95 respirator is covered below on the specifications its own listing publishes, the standards it is certified to, and who it suits.

WC Safety Editorial Pick — Moldex 2840R95 — R95 HandyStrap with valve and nuisance OV: spray painting and oil-mist with light OV odor. Read our full review → | Browse all Moldex disposable respirators →

Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve — NIOSH-Approved R95 Disposable Respirator

An air-purifying respirator filters air, it does not supply any. Under 29 CFR 1910.134 no air-purifying respirator may be worn in an atmosphere that is IDLH or oxygen-deficient (below 19.5% oxygen). Those conditions require a supplied-air respirator or an SCBA, and no filter or cartridge rating changes that.

Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve upgrades the R95 HandyStrap platform with both a Ventex exhalation valve for cooler wear and a nuisance-level organic vapor relief layer — making it the right choice for spray painting, auto body work, or machining environments where oil-mist R95 protection is needed and there's also a light OV odor component that a basic R95 won't address.

Jump to: Key Features · Specs · Hazard Coverage · Compare · FAQ

The Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve is a NIOSH-approved R95 filtering facepiece respirator from Moldex, listed on the NIOSH Certified Equipment List. Read the complete disposable respirator guide to compare NIOSH filter classes before ordering.

Key Features — 2840R95

NIOSH R95 approval for oil-resistant particulates plus nuisance organic vapor relief layer
Ventex exhalation valve routes hot exhaled air outward for cooler wear during active tasks
HandyStrap integrated straps molded into the low-profile cup body
Nuisance OV layer for odor comfort at low OV concentrations — NOT rated vapor protection
Low-profile for use under safety glasses and other face PPE

Pros

R95 + valve + nuisance OV — complete package for oil + light OV environments
Valve cuts heat for physically demanding spray work
Integrated straps for secure fit
NIOSH R95 verified oil resistance

Cons

Nuisance OV = odor comfort only, not chemical protection
One-shift oil limit for R95
Most expensive in the R95 HandyStrap line

Specifications

Specification	Detail
Brand	Moldex
Model	2840R95
NIOSH Class	R95
Exhalation Valve	Yes — exhalation valve
Nuisance Relief	Yes — OV nuisance relief
Shell Shape	Cup (low-profile)
Headstraps	Integrated HandyStrap
Pack Size	10/Box

Typical Applications

Spray painting with light solvent odor and oil-mist particulates; see nuisance-relief respirators
Auto body work with primer, filler dust, and light OV smell; browse all R95 respirators
Machining environments with oil-mist coolants and light OV odors
Compare R95 to P100 at our N95 vs P100 guide

Hazard Coverage — Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve

The Moldex 2840R95 HandyStrap R95 Respirator — Nuisance OV + Valve is NIOSH-approved under 42 CFR 84 Subpart K as an R95 respirator: ≥95% filtration, rated for both non-oil and oil-resistant particulates for up to one work shift of oil aerosol exposure. Covered environments: spray painting, automotive body work, machining with cutting fluids, oil-mist coolants. Browse all R95 respirators.

The R95 is oil-resistant not oil-proof — after one shift of continuous oil exposure, discard the 2840R95. Step up to a P100 for heavy or extended oil mist. See our N95 vs P100 guide.

Nuisance-relief note: The OV nuisance layer adds odor comfort at low concentrations only. Browse nuisance-relief respirators.

Compare 2840R95 vs 2740R95 vs 2940R95

Model	Filter	Valve	Pack	Best For
2840R95 (this page)	R95	No		This product
2740R95	R95	No	10/Box	No valve, no nuisance OV
2940R95	R95	Yes	10/Box	Nuisance AG + valve (vs OV)

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Where this sits against the alternatives is covered in 3m 2091 vs 2097 filter, 3m 2091 vs honeywell north 7580p100, 3m 6000 vs 6500 respirator, 3m 6000 vs 6500 vs 7500 series half mask respirator compared, 3m 6001 vs 6003 cartridge.

To see what else meets the same specification, start with 3m 6000 series full face mask respirator, 3m 60921 vs 60923 vs 60926 respirator cartridges, 3m 7800 series full face mask respirator.

Written by Steven Eaton, WC Safety editor. WC Safety is an independent PPE review site, holds no inventory and sells nothing directly; Amazon links are affiliate links that earn a commission at no cost to you and never affect the assessment. This page is not medical, legal or regulatory advice.

Neighbouring categories worth ruling in or out first: 3m disposable respirators, 3m full face mask respirators.

These cover the questions this page does not: 3m 60921 vs honeywell north 7581p100l, 3m 60923 vs 60926 cartridge, 3m 60926 vs honeywell north 75scp100l, 3m 6500 vs 7500 respirator.

Directly comparable options are grouped in 3m half mask respirators, 3m respirator filters and cartridges.

Brand / Vendor

Moldex

Model / SKU

2840R95

Product Type

Disposable Respirator

Price

$97.15 (Amazon)

Availability

Check current availability on Amazon

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