Dust Mask and Filter Cartridge Ratings

Respiratory Filters come in a variety of ratings that relate to how the respirator performs (how much it filters) and what environment type it is designed to be used in. When choosing a respirator it's important to understand that as the letter rating and number rating increase, breathing fatigue will increase. While you certainly don't want to choose a rating that is too low, you don't necessarily always want to pick a P100 filter for every application - particularly if you're just looking for a simple dust mask to do home improvement work. Typically, an end user will find an N95 respirator cooler, and easier to breath through than a P99 or P95 dust mask.

Respirator Rating Letter Class

  • N - Not oil resistant
  • R - Resistant to oil
  • P - Oil Proof

Respirator Rating Number Class

  • 95 - Removes 95% of all particles that are at least 0.3 microns in diameter
  • 99 - Removes 99% of particles that are at least 0.3 microns in diameter
  • 100 - Removes 99.97% of all particles that are 0.3 microns in diameter or larger. HE or HEPA quality filter.

Example Particle Sizes

Particle Particle Size
(microns)
Anthrax 1 - 5
Asbestos 0.7 - 90
Atmospheric Dust 0.001 - 40
Bacteria 0.3 - 60
Beach Sand 100 - 10000
Bone Dust 3 - 300
Bromine 0.1 - 0.7
Carbon Dioxide 0.00065
Copier Toner 0.5 - 15
Corn Starch 0.1 - 0.8
Fiberglass Insulation 1 - 1000
Lead 0.1 - 0.7
Metallurgical Dust 0.1 - 1000
Mold Spores 10 - 30
Oil Smoke 0.03 - 1
One inch 25400
Oxygen 0.0005
Pesticides & Herbicides 0.001
Radioactive Fallout 0.1 - 10
Red Blood Cells 5 - 10
Saw Dust 30 - 600
Smoke from Natural Materials 0.01 - 0.1
Smoke from Synthetic Materials 1 - 50
Spores 3 - 40
Sugars 0.0008 - 0.005
Tobacco Smoke 0.01 - 4
Typical Atmospheric Dust 0.001 to 30

Respirator Ratings & Considerations

Quite simply, a respirator with a rating of P100, has been tested to be proof against oil, and tested to filter 99.97% of all particles 0.3 microns in diameter or larger. To the right you can see various examples of the size (in microns) of various substances for comparison.

N95 Masks

N95 Masks

Most commonly used for Flu or Influenza prevention, these masks are effective according to the CDC in helping to prevent the spread of Flu, swine flu and avian flu transmission from person to person. N95 masks are designed to fit over the nose and mouth of the wearer, and properly fitted can provide excellent protection. Our most popular N95 mask is the 3M 8210 Dust Mask.

P95 Masks

Most commonly used for working in environments exposed to oil-based particles, P95 respirators are approved by NIOSH for 95% filtration efficiency against oil-based and non-pil-based particulates. I deally suited in the petrochemical and pharmaceutical sectors. Our most popular P95 mask is the 3M 8271 Dust Mask.

respirator_1
medium

Filters & Cartridges

Used in conjunction with full face respirators or half face respirators, filters and cartridges are used where a more secure fit is desired for the user. Unlike disposable masks which only filter out air-based particulates, cartridges are capable of filtering out non-particulate hazards ranging from organic vaporsr to chlorine and tear gas. Cartridges and filters are sold in pairs typically, and are attached to the masks and discarded when they are worn out. You can explore our full selection of filters & cartridges here. Full masks are typically used in environments where contaminates will irritate mucus membranes and a users eyes.

Flu Set

Are N95 Masks Really Effective against the flu?

A little online research will reveal that the flu virus is .17 microns in size. Clearly smaller than even N100 masks can filter out. However, it is critical to understand that the flu virus does not float in the air by itself. The flu virus is transported from patient to patient on droplets of excretions from sneezing and coughing. These particles are typically 5 microns or larger. When a sick patient wears a respirator, the respirator can be very effective at preventing infectious material from leaving the patients body, and when worn by healthy individuals, it prevents inhalation of said material. More importantly, wearing a mask is a excellent way of preventing the user from rubbing or touching their mouth or nose, which is a very high risk factor. At the end of the day will an N95 mask guarantee to protect you from the Flu? No. But it can substantially reduce your risk or receiving or transmitting the disease.

When do Dust Masks/Filters wear out?

In general, dust masks and filters should be discarded after each "encounter" or "procedure". The risk of contamination can also be heightened by removing and applying the mask multiple times. In general, once removed, the Dust Mask should be disposed of. Additionally, proper hand hygiene should be observed when touching a potentially contaminated mask. Further concern should be given to cross-contamination when wearing masks into different rooms or areas. Regardless of usage, masks should be discarded when used beyond 8 hours, and careful review and testing should be performed in regards to hazardous chemicals/particles.

Dust Masks

View all
3M 9210+ N95 Aura Particulate Respirator Mask3M 9210+ N95 Aura Particulate Respirator Mask
3M 3M 9210+ N95 Aura Particulate Respirator Mask
Sale priceFrom $24.09 Regular price$34.99
Choose options
3M 1870+ Aura N95 Health Care Particulate Respirator & Surgical Mask3M 1870+ Aura N95 Health Care Particulate Respirator & Surgical Mask
3M 3M 1870+ Aura N95 Health Care Particulate Respirator & Su...
Sale priceFrom $31.69 Regular price$41.69
Choose options
3M 8210 N95 Particulate Respirator Mask, Box of 203M 8210 N95 Particulate Respirator Mask, Box of 20
3M 3M 8210 N95 Particulate Respirator Mask, Box of 20
As low as Sale price$19.79 Regular price$29.79
3M 8511 N95 Particulate Respirator Mask with CoolFlow Valve, Box of 103M 8511 N95 Particulate Respirator Mask with CoolFlow Valve, Box of 10
3M 3M 8511 N95 Particulate Respirator Mask with CoolFlow Val...
As low as Sale price$23.99 Regular price$34.79
Honeywell DF300N95BX N95 Flatfold Disposable Respirator, Box of 20 MasksHoneywell DF300N95BX N95 Flatfold Disposable Respirator, Box of 20 Masks
Honeywell Honeywell DF300N95BX N95 Flatfold Disposable Respirator, ...
As low as Sale price$16.49 Regular price$26.49
3M 8110S N95 Particulate Respirator, Small, Box of 203M 8110S N95 Particulate Respirator, Small, Box of 20
3M 3M 8110S N95 Particulate Respirator, Small, Box of 20
As low as Sale price$20.79 Regular price$30.79
3M 8200 N95 Particulate Respirator, Box of 203M 8200 N95 Particulate Respirator, Box of 20
3M 3M 8200 N95 Particulate Respirator, Box of 20
As low as Sale price$12.09 Regular price$22.09
3M 9205+ N95 Aura Particulate Respirator Mask, Case of 4403M 9205+ N95 Aura Particulate Respirator Mask, Case of 440
3M 3M 9205+ N95 Aura Particulate Respirator Mask, Case of 440
As low as Sale price$453.09 Regular price$463.09
3M 1870+ Aura N95 Health Care Particulate Respirator & Surgical Mask, Case of 4403M 1870+ Aura N95 Health Care Particulate Respirator & Surgical Mask, Case of 440
3M 3M 1870+ Aura N95 Health Care Particulate Respirator & Su...
As low as Sale price$644.79 Regular price$654.79
3M 8200 N95 Particulate Respirator, Case of 1603M 8200 N95 Particulate Respirator, Case of 160
3M 3M 8200 N95 Particulate Respirator, White, Standard, Box ...
As low as Sale price$92.99 Regular price$102.29
Moldex 1500 N95 Series Healthcare Particulate Respirator & Surgical Mask, Box of 20Moldex 1500 N95 Series Healthcare Particulate Respirator & Surgical Mask, Box of 20
Moldex Moldex 1500 Series 1511 N95 Healthcare Particulate Respir...
Sale priceFrom $31.29 Regular price$34.42
Choose options
Moldex 2400 N95 Disposable Particulate Respirator Bag Of 10
Moldex Moldex 2400 N95 Disposable Particulate Respirator Bag Of 10
As low as Sale price$57.19 Regular price$62.91
3M™ 8247 R95 Particulate Respirator, Box of 20
3M 3M™ 8247 R95 Particulate Respirator, Box of 20
As low as Sale price$77.79 Regular price$87.79
Moldex 2200 N95 Particulate Respirators Medium/Large Box Of 20
Moldex Moldex 2200 N95 Particulate Respirators Medium/Large Box ...
As low as Sale price$19.99 Regular price$35.09
Honeywell 14110394 SAF-T-FIT Plus N1125 N95, Exhalation Valve, Box Of 20
Honeywell Honeywell 14110394 SAF-T-FIT Plus N1125 N95, Exhalation V...
As low as Sale price$44.69 Regular price$54.69
PIP Safety Works 10028560 Non-Toxic Dust Mask, Box of 50
PIP PIP Safety Works 10028560 Non-Toxic Dust Mask, Box of 50
As low as Sale price$3.89 Regular price$4.28
Gerson 1730 N95 Particulate Respirator, 20 per Box, Case of 240
Gerson Gerson 1730 N95 Particulate Respirator, 20 per Box, Case ...
As low as Sale price$185.09 Regular price$195.09
Honeywell North RWS-54003 Saf-T-Fit Plus N95 Disposable Respirator with Valve, White, One Size, Box of 5
Honeywell Honeywell North RWS-54003 Saf-T-Fit Plus N95 Disposable R...
As low as Sale price$26.99 Regular price$36.99
Honeywell North RWS-54000 Disposable Mask for Nuisance Particulate and Dust, White, One Size, Box of 4
Honeywell Honeywell North RWS-54000 Disposable Mask for Nuisance Pa...
As low as Sale price$17.19 Regular price$27.19
Honeywell North RWS-54002 2 Pack Saf-T-Fit Plus N95 Disposable Respirator, White, One Size, Box of 5
Honeywell Honeywell North RWS-54002 2 Pack Saf-T-Fit Plus N95 Dispo...
As low as Sale price$28.09 Regular price$38.09
Honeywell North RWS-54001 50 Pack Disposable Mask for Nuisance Particulate and Dust, White, One Size, Box of 4
Honeywell Honeywell NORRWS-54001 Nuisance Particulate Disposable Du...
As low as Sale price$54.29 Regular price$59.72
Honeywell RWS-54049 N95 Flatfold Mask, White, One Size, Case of 60 Eaches
Honeywell Honeywell RWS-54049 N95 Flatfold Mask, White, One Size, C...
As low as Sale price$509.49 Regular price$519.49
Honeywell RWS-54020-DSP Saf-T-Fit P100 Disposable Respirator, White, One Size, Box of 30
Honeywell Honeywell RWS-54020-DSP Saf-T-Fit P100 Disposable Respira...
As low as Sale price$499.99 Regular price$509.99
3M 8246 Particulate Respirator R95 Mask, with Nuisance Level Acid Gas Relief, Case of 120
3M 3M 8246 Particulate Respirator R95 Mask, with Nuisance Le...
As low as Sale price$466.69 Regular price$476.69