N95 Respirators, Filters and Prefilters

Disposable N95 Respirator vs. N95 Prefilter for Reusable Respirator — What the Application Requires

N95 filtration provides 95% efficiency against non-oil-based particulates including silica dust, metal fumes, woodworking dust, and biological aerosols. This collection covers both disposable N95 respirators (single-use or limited-use filtering facepieces) and N95-rated replacement prefilters for reusable half-mask respirator systems. The decision between them depends on use frequency, exposure duration, and whether the hazard is particulate-only or includes chemical vapor.

Quick Picks

Model	Pick	Key Spec	Price
3M 8210	Best Overall Disposable N95	N95, flat fold, no valve	$18.49
3M 8511	Best N95 with Exhalation Valve	N95, Cool Flow valve, cup	$19.46
3M 8200	Best Value Disposable	N95, flat fold, no valve	$13.99
3M 5N11	Best N95 Prefilter (Reusable)	N95 prefilter, 3M 6000/7000	$20.05
3M 8214	Best for Welding	N95 OV/NuisanceOV, Cool Flow	$93.11

N95 is a NIOSH particulate filtration rating indicating 95% minimum efficiency against non-oil-based aerosol particles at a flow rate of 85 L/min. N95 respirators are the most widely used particulate respiratory protection in general industry, construction, and healthcare. OSHA 29 CFR 1910.134 requires N95 or higher filtration for workers exposed to silica dust, wood dust, metal fumes, grain dust, biological aerosols, and other non-oil-based airborne hazards at concentrations above the permissible exposure limit. This collection includes NIOSH-approved disposable N95 filtering facepiece respirators (FFRs) and N95-rated prefilters designed for use with reusable half-mask and full-face respirator systems.

Decision 1: Disposable FFR vs. N95 Prefilter for Reusable Respirator

Disposable N95 filtering facepiece respirators (3M 8210, 8511, 8200) are self-contained: the facepiece itself is the filter element, worn once and discarded at end-of-shift or when physically damaged or contaminated. They require individual fit testing per OSHA 1910.134. Prefilters (3M 5N11) are replacement filter elements that attach to a reusable half-mask respirator (3M 6000, 7000 series) as the outermost filter stage, providing N95 particulate protection as an alternative to a P100 filter. Prefilters used on reusable respirators cost less per unit than P100 filters and are appropriate for environments where only 95% particulate efficiency is required. For oil aerosol environments or where maximum particulate filtration is needed, P100 (99.97%) is the correct choice over N95.

Decision 2: Exhalation Valve vs. No Valve

Disposable N95 respirators are available with and without an exhalation valve. Valved models (3M 8511 with Cool Flow valve) allow exhaled air to exit through the valve rather than through the filter medium, reducing heat and humidity buildup inside the facepiece and reducing exhalation resistance during physically demanding work. The exhalation valve does not affect inhalation filtration — protection for the wearer is equivalent. However, valved respirators are not appropriate for sterile or clean-room environments where unfiltered exhaled air from the wearer poses a contamination risk. For most industrial and construction applications, valved models improve comfort and are preferred for extended wear; for healthcare and controlled-environment applications, non-valved models are required.

Decision 3: N95 Sufficiency vs. Need for P100 or Chemical Cartridge

N95 is not oil-proof — its 95% efficiency rating applies to non-oil-based particulates only. In metalworking environments where oil mist or oil-based metalworking fluids generate aerosols, N95 loses efficiency over time as oil degrades the electrostatic charge on the filter media. P100 filtration is oil-proof and maintains 99.97% efficiency regardless of oil aerosol exposure. For welding, N95 protects against weld fume particulate but does not address ozone, nitrogen oxides, or metal vapor — specialized welding respirators with OV/N95 combination cartridges (3M 8214) address both. For any environment where chemical vapor is a simultaneous hazard alongside particulate, a reusable respirator with the appropriate chemical cartridge plus a particulate filter is required — a disposable N95 provides particulate protection only.

Frequently Asked Questions

What is the difference between N95, KN95, and FFP2 respirators?

N95 is a NIOSH (U.S.) approval under 42 CFR Part 84 — it has been tested and certified by the U.S. federal government. KN95 is a Chinese standard (GB 2626) and FFP2 is a European standard (EN 149). All three target approximately 95% filtration efficiency but are tested under different conditions and by different regulatory bodies. OSHA and NIOSH accept N95 for U.S. workplace respiratory protection requirements. KN95 and FFP2 are not NIOSH-approved and cannot be substituted in OSHA-required respiratory protection programs without specific OSHA variance or emergency authorization.

Can N95 respirators be reused?

NIOSH-approved N95 disposable respirators are designed for single use or limited reuse under specific conditions. OSHA and the CDC have provided guidance for extended use and limited reuse in healthcare shortage situations, but these are not standard operating procedures for industrial use. For industrial applications, change the respirator at the end of the work shift, when it becomes physically damaged, when breathing resistance increases substantially, when the surface is contaminated with blood or other fluids, or when the face seal is compromised. Reusable N95-rated prefilters on a half-mask respirator are a better choice when multi-shift durability is required.

Does a N95 respirator require fit testing?

Yes. OSHA 29 CFR 1910.134 requires fit testing for all tight-fitting respirators including disposable N95 FFRs when used in the workplace for OSHA-required respiratory protection. Fit testing must be performed before initial use, when a different respirator model is introduced, and annually thereafter. Qualitative fit testing (QLFT) uses bitter or sweet aerosols to detect leakage; quantitative fit testing (QNFT) uses a particle counter to measure leakage ratio. Disposable N95 respirators selected voluntarily under Appendix D to 1910.134 do not require fit testing when concentrations remain below the action level.

Is a N95 respirator appropriate for silica dust from concrete cutting?

N95 provides 95% efficiency against respirable crystalline silica (RCS). OSHA 1926.1153 (construction) and 1910.1053 (general industry) specify respiratory protection requirements for silica based on measured exposure levels and task types. For tasks listed in Table 1 of 1926.1153 where engineering controls are implemented, an N95 FFR is often the required minimum. For exposures above 25× the PEL, a supplied-air respirator is required. Verify the required APF against the measured silica exposure before selecting N95 — in some higher-exposure tasks, P100 with a higher APF half-mask or full-face respirator is required.

What is the assigned protection factor (APF) of a disposable N95?

A disposable N95 filtering facepiece respirator has an OSHA-assigned protection factor of 10 under 29 CFR 1910.134, Table 1. This means it is expected to reduce exposure concentration by a factor of 10. If the measured hazard concentration is 10× the OEL or lower, an N95 is appropriate. Concentrations above 10× the OEL require a respirator with a higher APF — a half-mask elastomeric (APF 10), full-face respirator (APF 50), or PAPR (APF 25–1000 depending on type).

Can children or individuals with facial hair use N95 respirators effectively?

N95 respirators are designed and approved for adult use. NIOSH does not test or approve respirators for children — smaller-size respirators exist (3M 8110S small size) but are not separately approved for pediatric use. Facial hair that passes through the facepiece seal area — stubble, beard, mustache — compromises the face seal and prevents the wearer from achieving the rated protection factor. OSHA 1910.134 requires workers in tight-fitting respirators to be clean-shaven in the sealing area. Workers with facial hair who require respiratory protection must use a loose-fitting PAPR hood or supplied-air hood.

How do I store N95 respirators to preserve their effectiveness?

Store in original sealed packaging in a clean, dry environment away from heat, UV light, and chemical vapors. Activated carbon components (in combination FFRs like the 3M 8214) will absorb ambient vapors over time if stored unsealed. Most manufacturers recommend use within five years of manufacture date for sealed product. Once removed from packaging, protect from contamination, humidity, and physical deformation of the nosepiece or facepiece. Do not store in areas with solvent, ozone, or strong chemical vapor exposure.

What is the difference between a N95 prefilter and a N95 disposable respirator?

A N95 disposable respirator (FFR) is a complete self-contained facepiece — the entire unit is the filter, worn over the face and discarded. An N95 prefilter (3M 5N11) is a flat circular filter pad that attaches to the outer face of a chemical cartridge mounted on a reusable half-mask respirator. The prefilter provides N95 particulate filtration as the outermost filter stage while the underlying cartridge handles chemical vapor. Prefilters are changed when loaded or damaged; the underlying cartridge is changed on its chemical service life schedule independently.

Related from WC Safety

P100 Filters and Cartridges | Combination Cartridges | All Respirators

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3M 8516 N95 Welding Respirator (Pack of 10)

$24.99 - $24.99

$24.99

$24.99 - $24.99

$24.99

WC Safety Editorial Pick — Advanced electret N95 welding respirator — lower breathing resistance for all-day welding shifts. Read our full review ...

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3M Aura 1870+ N95 Surgical Respirator (Pack of 20)

$9.99 - $9.99

$9.99

$9.99 - $9.99

$9.99

WC Safety Editorial Pick — Aura flat-fold surgical N95 — more interior volume, FDA-cleared, NIOSH N95-approved. Read our full review → | Browse ...

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3M 1860S Small N95 Surgical Respirator (Pack of 120)

$29.99 - $29.99

$29.99

$29.99 - $29.99

$29.99

WC Safety Editorial Pick — FDA 510(k)-cleared surgical N95 in small size — for healthcare workers with smaller face dimensions. Read our full revi...

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3M Secure Click D7N11 N95 Particulate Filter, 20/Pack

$53.70 - $53.70

$53.70

$53.70 - $53.70

$53.70

EDITORIAL REVIEW: 4.1/5 WC Safety Review — 3M Secure Click D7N11 N95 Particulate Filter, 20/Pack Best For: High-volume non-oil ...

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Pyramex RM10V N95 Respirator with Exhalation Valve

Pyramex

$12.75 - $12.75

$12.75

$12.75 - $12.75

$12.75

WC Safety Editorial Pick — Pyramex RM10V — NIOSH N95 with exhalation valve from a trusted construction safety brand. Read our full review → | Br...

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Honeywell N95 Respirator, Unvented, 20-Pack (RWS-54003)

Honeywell

$22.19 - $22.19

$22.19

$22.19 - $22.19

$22.19

WC Safety Editorial Pick — Honeywell RWS-54003 N95 — unvalved cup N95, 20-pack, for general industrial protection. Read our full review → | Brow...

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KleenGuard 3400 Series N95 Particulate Respirator (RA3415V)

KleenGuard

$22.89 - $22.89

$22.89

$22.89 - $22.89

$22.89

WC Safety Editorial Pick — KleenGuard RA3415V N95 — 3400 Series cup N95 with exhalation valve for cooler active-use wear. Read our full review → ...

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Klein Tools 60507 N95 Replacement Filters, 3-Pack

Klein Tools

$9.98 - $9.98

$9.98

$9.98 - $9.98

$9.98

Disclosures & editorial standardsWC Safety participates in the Amazon Services LLC Associates Program. Outbound Amazon links are affiliate lin...

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Gateway Safety TruAir 80301 N95 Respirator, Unvented

Gateway Safety

$13.49 - $13.49

$13.49

$13.49 - $13.49

$13.49

WC Safety Editorial Pick — Gateway Safety TruAir 80301 — standard unvalved N95 for source-control environments. Read our full review → | Browse ...

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Gateway Safety PeakFit 80101 N95 Respirator, Unvented

Gateway Safety

$20.43 - $20.43

$20.43

$20.43 - $20.43

$20.43

WC Safety Editorial Pick — Gateway Safety PeakFit 80101 — N95 cup with PeakFit geometry for diverse nose bridge profiles. Read our full review → ...

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Gateway Safety TruAir 80302V Vented N95 Respirator

Gateway Safety

$18.50 - $18.50

$18.50

$18.50 - $18.50

$18.50

WC Safety Editorial Pick — Gateway Safety TruAir 80302V — valved N95 for cooler wear during active construction and industrial tasks. Read our ful...

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KleenGuard 3300 Series N95 Particulate Respirator (RA3315)

KleenGuard

$22.19 - $22.19

$22.19

$22.19 - $22.19

$22.19

WC Safety Editorial Pick — KleenGuard RA3315 N95 — 3300 Series cup N95 for general industrial particulate protection. Read our full review → | B...

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Moldex 4200N95 AirWave Disposable Respirator

Moldex

$32.99 - $32.99

$32.99

$32.99 - $32.99

$32.99

WC Safety Editorial Pick — Moldex 4200N95 AirWave — contoured cup with air channels for better N95 comfort during extended wear. Read our full rev...

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Gerson 1745 N95 Respirator with OV-AG Nuisance Relief – Organic Vapor and Acid Gas, Made in USA (Box of 10)

Gerson

$22.99 - $22.99

$22.99

$22.99 - $22.99

$22.99

WC Safety Editorial Pick — Gerson 1745 N95 — dual nuisance OV+AG relief layers for environments with dust and light chemical odors. Read our full ...

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Gerson 1740 N95 Particulate Respirator with Exhalation Valve – Molded Cup, Made in USA (Box of 10)

Gerson

$19.99 - $19.99

$19.99

$19.99 - $19.99

$19.99

WC Safety Editorial Pick — Gerson 1740 N95 with valve — cup-style N95 with exhalation valve for cooler extended wear. Read our full review → | B...

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Gerson 1730 N95 Particulate Respirator – Molded Cup, FDA Cleared, Made in USA (Box of 20)

Gerson

$17.85 - $17.85

$17.85

$17.85 - $17.85

$17.85

WC Safety Editorial Pick — Gerson 1730 N95 — cup-style industrial N95 respirator, 20-pack, for general particulate protection. Read our full revie...

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Gerson 3230 N95 Respirator – NIOSH Approved, Low-Resistance Foldable Mask (Box of 50)

Gerson

$9.79 - $9.79

$9.79

$9.79 - $9.79

$9.79

WC Safety Editorial Pick — Gerson 3230 N95 — flat-fold industrial N95 in a 50-count box for volume protection programs. Read our full review → | ...

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Gerson 3230+ Surgical N95 Respirator – FDA Cleared, NIOSH Approved (Box of 50)

Gerson

$34.20 - $34.20

$34.20

$34.20 - $34.20

$34.20

WC Safety Editorial Pick — Gerson 3230 Surgical N95 — FDA 510(k)-cleared surgical mask and NIOSH N95, 50-count box. Read our full review → | Bro...

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Gerson 3230 EZ-GO N95 Respirator Zip Pak – Bag of 5 Individually Wrapped Masks

Gerson

$16.99 - $16.99

$16.99

$16.99 - $16.99

$16.99

WC Safety Editorial Pick — Gerson 3230 EZ-Go — flat-fold N95 for quick on/off in high-reentry environments. Read our full review → | Browse all ...

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MSA Advantage N95 Cover — Reusable Snap-On Prefilter Holder

MSA Safety

$16.95 - $16.95

$16.95

$16.95 - $16.95

$16.95

EDITORIAL REVIEW: 4.5/5WC Safety Review — MSA Advantage N95 Cover Best For: crews running N95 prefilter discs on MSA Advantage cartridges who w...

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MSA Advantage N95 Snap-On Prefilter Disc (10-pack)

MSA Safety

$34.82 - $34.82

$34.82

$34.82 - $34.82

$34.82

EDITORIAL REVIEW: 4.5/5WC Safety Review — MSA Advantage N95 Snap-On Prefilter Best For: adding N95 particulate protection over an MSA Advantage...

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MSA Advantage N95 Snap-On Prefilter Disc (50-pack)

MSA Safety

$160.64 - $160.64

$160.64

$160.64 - $160.64

$160.64

EDITORIAL REVIEW: 4.5/5WC Safety Review — MSA Advantage N95 Snap-On Prefilter Best For: adding N95 particulate protection over an MSA Advantage...

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Moldex 4800N95 AirWave Respirator — Nuisance OV + SmartStrap

Moldex

$82.49 - $82.49

$82.49

$82.49 - $82.49

$82.49

WC Safety Editorial Pick — Moldex 4800N95 — AirWave SmartStrap N95 with nuisance OV relief for dust + light OV environments. Read our full review ...

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Moldex M4600N95 AirWave Respirator — Black, SmartStrap

Moldex

$67.44 - $67.44

$67.44

$67.44 - $67.44

$67.44

WC Safety Editorial Pick — Moldex M4600N95 — black AirWave SmartStrap N95 for security and specialized industrial programs. Read our full review →...

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Moldex 4600N95 AirWave Disposable Respirator — SmartStrap

Moldex

$54.94 - $54.94

$54.94

$54.94 - $54.94

$54.94

WC Safety Editorial Pick — Moldex 4600N95 AirWave SmartStrap — self-adjusting headband N95 for fastest don/doff in the lineup. Read our full revie...

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Moldex M2800N95 Special Ops HandyStrap N95 — Nuisance OV + Valve, Black

Moldex

$97.59 - $97.59

$97.59

$97.59 - $97.59

$97.59

WC Safety Editorial Pick — Moldex M2800N95 — black N95 with valve and nuisance OV relief: the full-feature Special Ops HandyStrap. Read our full r...

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Moldex M2700N95 Special Ops HandyStrap N95 — Ventex Valve, Black

Moldex

$89.03 - $89.03

$89.03

$89.03 - $89.03

$89.03

WC Safety Editorial Pick — Moldex M2700N95 Special Ops — black HandyStrap N95 with Ventex valve for cooler all-day wear. Read our full review → |...

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Moldex M2600N95 Special Ops HandyStrap N95 — Unvalved, Black

Moldex

$44.99 - $44.99

$44.99

$44.99 - $44.99

$44.99

WC Safety Editorial Pick — Moldex M2600N95 Special Ops — black HandyStrap N95, same protection as 2607N95 in a black shell. Read our full review →...

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Moldex 2800N95 HandyStrap N95 Respirator — Nuisance OV + Valve

Moldex

$39.00 - $39.00

$39.00

$39.00 - $39.00

$39.00

WC Safety Editorial Pick — Moldex 2800N95 — N95 with valve and nuisance OV layer for dusty environments with light OV odor. Read our full review →...

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Moldex 2700N95 HandyStrap N95 Disposable Particulate Respirator — Valve

Moldex

$18.99 - $18.99

$18.99

$18.99 - $18.99

$18.99

WC Safety Editorial Pick — Moldex 2700N95 HandyStrap with Ventex valve — cooler N95 for warm or active workplaces. Read our full review → | Brow...

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Moldex 2607N95 HandyStrap N95 Respirator — Low Profile, 12/Box

Moldex

$31.76 - $31.76

$31.76

$31.76 - $31.76

$31.76

WC Safety Editorial Pick — Moldex 2607N95 HandyStrap — low-profile cup, integrated straps, standard N95 for general industry. Read our full review...

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Moldex 2601N95 HandyStrap N95 Respirator — Low Profile, Small

Moldex

$14.99 - $14.99

$14.99

$14.99 - $14.99

$14.99

WC Safety Editorial Pick — Moldex HandyStrap N95 in small size — integrated straps, low-profile cup for smaller faces. Read our full review → | ...

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Moldex 2500N95 N95 Disposable Respirator — Nuisance Acid Gas + Valve

Moldex

$18.99 - $18.99

$18.99

$18.99 - $18.99

$18.99

WC Safety Editorial Pick — Moldex 2500N95 N95 with nuisance acid gas layer and exhale valve — for dust + light acid gas odor. Read our full review...

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Moldex 2400N95 N95 Disposable Respirator — Nuisance OV + Valve

Moldex

$18.99 - $18.99

$18.99

$18.99 - $18.99

$18.99

WC Safety Editorial Pick — Moldex 2400N95 N95 with nuisance OV layer and exhale valve — for dusty environments with light OV odor. Read our full r...

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Moldex 2307N95 N95 Low Profile Disposable Respirator — Exhale Valve

Moldex

$40.42 - $40.42

$40.42

$40.42 - $40.42

$40.42

WC Safety Editorial Pick — Moldex 2307N95 low-profile N95 with exhale valve — low-profile cup for use under PPE. Read our full review → | Browse...

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Moldex 2201N95 Flat-Fold N95 Disposable Respirator — Small, 20/Box

Moldex

$18.99 - $18.99

$18.99

$18.99 - $18.99

$18.99

WC Safety Editorial Pick — Moldex 2201N95 flat-fold N95 in small size — NIOSH-approved, source-control compatible. Read our full review → | Brow...

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Moldex 2200N95 Disposable Particulate Respirators with labeled features on a white background

Moldex 2200N95 N95 Disposable Respirator

Moldex

$8.43

$8.43 - $8.43

$8.43

$5.27

$5.27 - $5.27

$5.27

WC Safety editorial note — Moldex 2200N95 N95 Disposable RespiratorNIOSH-certified Moldex disposable respirator — full specs, compatibility, FAQ, ...

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3M 9105 VFlex N95 Disposable Respirator

$45.45

$45.45 - $45.45

$45.45

$38.55

$38.55 - $38.55

$38.55

WC Safety editorial note — 3M 9105 VFlex N95 Disposable RespiratorNIOSH-certified 3M disposable respirator — full specs, compatibility, FAQ, and o...

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Kimberly-Clark 53358 KIMTECH N95 Pouch Disposable Respirator

Kimberly Clark

$49.99 - $49.99

$49.99

$49.99 - $49.99

$49.99

WC Safety editorial note — Kimberly-Clark 53358 KIMTECH N95 Pouch Disposable RespiratorNIOSH-certified Kimberly Clark disposable respirator — full...

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Moldex 2300N95 N95 Disposable Respirator with Exhale Valve

Moldex

$39.20 - $39.20

$39.20

$39.20 - $39.20

$39.20

WC Safety editorial note — Moldex 2300N95 N95 Disposable Respirator with Exhale ValveNIOSH-certified Moldex disposable respirator — full specs, co...

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White Honeywell H910P on a white background

Honeywell H910P DF300 N95 Flatfold Disposable Respirator

Honeywell

$29.54

$29.54 - $29.54

$29.54

$21.99

$21.99 - $21.99

$21.99

50.0item | $0.44 / item

WC Safety editorial note — Honeywell H910P DF300 N95 Flatfold Disposable RespiratorNIOSH-certified Honeywell disposable respirator — full specs, c...

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Honeywell DF300 N95 Flatfold Disposable Respirator

Honeywell

$51.25

$51.25 - $51.25

$51.25

$16.48

$16.48 - $16.48

$16.48

WC Safety editorial note — Honeywell DF300 N95 Flatfold Disposable RespiratorNIOSH-certified Honeywell disposable respirator — full specs, compati...

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Honeywell North 7506N95 Respirator Prefilter (view 2)

Honeywell North 7506N95 N95 Snap-On Prefilter — North Bayonet

Honeywell North

$11.55 - $11.55

$11.55

$19.98

$19.98 - $19.98

$19.98

EDITORIAL REVIEW: 4.5/5WC Safety Review — Honeywell North 7506N95 N95 Prefilter Best For: adding N95 particulate protection over a North gas ca...

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3M 5N11 N95 Pre Filter

$29.20

$29.20 - $29.20

$29.20

$19.99

$19.99 - $19.99

$19.99

EDITORIAL REVIEW: 4.4/5 WC Safety Review — 3M 5N11 N95 Pre Filter Best For: Adding N95 non-oil particulate protection on top of...

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3M 8214 N95 Disposable Welding Respirator with Cool Flow Valve Nuisance Organic Vapor Relief

$114.50

$114.50 - $114.50

$114.50

$83.53

$83.53 - $83.53

$83.53

WC Safety Editorial Pick — Wider-cup N95 welding respirator with Cool Flow valve — more interior volume for long shifts. Read our full review → |...

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3M 8515HA1-A — A white 3M 8515 N95 welding disposable respirator with a Cool Flow Valve and elastic ear loops.

3M 8515HA1-A — 3M 8515 respirator mask packaging with N95 certification on a white background

3M 8515HA1-A N95 Welding Disposable Respirator with Cool Flow Valve

$15.99 - $15.99

$15.99

$16.99

$16.99 - $16.99

$16.99

WC Safety editorial note — 3M 8515HA1-A N95 Welding Disposable Respirator with Cool Flow ValveNIOSH-certified 3M disposable respirator — full spec...

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3M 8212 N95 Disposable Welding Respirator with Cool Flow Valve

$95.30

$95.30 - $95.30

$95.30

$90.60

$90.60 - $90.60

$90.60

WC Safety Editorial Pick — NIOSH N95 welding respirator with Cool Flow valve — structured cup fits under welding helmets. Read our full review → ...

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3M 9211+ White face mask with gray trim on a white background

3M 9211+ N95 Disposable Respirator with Cool Flow Valve

$38.82

$38.82 - $38.82

$38.82

$29.17

$29.17 - $29.17

$29.17

WC Safety editorial note — 3M 9211+ N95 Disposable Respirator with Cool Flow ValveNIOSH-certified 3M disposable respirator — full specs, compatibi...

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