Description
The MSA 816662 is the N95 (stand-alone and cover, or prefilter and cover), a reusable snap-on cover for MSA Comfo threaded cartridges / Comfo respirators. The MSA chart marks it for N95. MSA pack: 10 in pkg.. Sold by the pack. Ships in 1–2 business days; most orders arrive in 3–7 business days.
MSA 816662 specifications
| Item | Manufacturer data |
|---|---|
| MSA part number | 816662 |
| MSA chart description | N95 (stand-alone and cover, or prefilter and cover) |
| Cartridge line | Comfo |
| Type | Reusable snap-on cover |
| NIOSH classes marked on the chart | N95 |
| Fits | MSA Comfo threaded cartridges / Comfo respirators |
| MSA pack | 10 in pkg. |
Source: MSA Respirator Cartridge Chart 1000-86-MC (Feb 2017).
What the MSA chart marks for the 816662
| NIOSH class or note | Status |
|---|---|
| N95 | Marked on the MSA chart |
| Chart note 1 | Do not use in atmospheres containing less than 19.5 percent oxygen, in atmospheres containing gases or vapors or in atmospheres immediately dangerous to life and health. |
Source: MSA Respirator Cartridge Chart 1000-86-MC (Feb 2017). P100-Particulate Filter (99.97% filter efficiency level) effective against all particulate aerosols. N95-Particulate Filter (95% filter efficiency level) effective against particulate aerosols free of oil; time use restrictions may apply. R95-Particulate Filter (95% filter efficiency level) effective against all particulate aerosols; time use restrictions may apply.
MSA facepieces that take the 816662
MSA Comfo threaded cartridges / Comfo respirators.
| Facepiece | Type | How the cartridge mounts |
|---|---|---|
| Comfo Classic Half-Mask Respirator | Half mask | Threaded Comfo cartridges |
| Ultra-Twin Full-Facepiece Respirator | Full facepiece | Threaded Comfo cartridges (twin-cartridge) |
| Ultra Elite Facepiece (twin-cartridge) | Full facepiece | Threaded Comfo cartridges with twin-cartridge adapter 803622 |
| Ultravue Facepiece | Full facepiece | Threaded Comfo cartridges with twin-cartridge adapter 803622; chin-type canister |
| Advantage 420 Half-Mask Respirator | Half mask | Advantage bayonet; threaded Comfo cartridges with adapter 809999 |
Source: MSA Respirator Cartridge Chart 1000-86-MC (Feb 2017); MSA Advantage Twin Cartridge Respirators data sheet 1012-42-MC (08.2025); MSA Comfo Classic data sheet 1021-02-MC (07.2026); MSA G1 Facepiece Twin Cartridge APR Adapter data sheet 1000-89-MC.
NIOSH approval configurations naming the 816662
The MSA NIOSH approval inserts list 74 approval configurations naming this part; the first 14:
| Approval | Protection (insert) | Approval insert | Other cartridges/filters in the row |
|---|---|---|---|
| TC-84A-1515 | N95/OV | COMFO RESPIRATOR FAMILY | 464031 |
| TC-84A-1516 | N95/CL/HC/SD/CD/HS | COMFO RESPIRATOR FAMILY | 464032 |
| TC-84A-1517 | N95/OV/CL/HC/SD/CD/HS | COMFO RESPIRATOR FAMILY | 464046 |
| TC-84A-1518 | N95/AM/MA | COMFO RESPIRATOR FAMILY | 464033 |
| TC-84A-1519 | N95/OV/CL/HC/SD/FM | COMFO RESPIRATOR FAMILY | — |
| TC-84A-1522 | N95/OV | Advantage 1000 Respirator Family | 464031 |
| TC-84A-1523 | N95/CL/HC/SD/CD/HS | Advantage 1000 Respirator Family | 464032 |
| TC-84A-1524 | N95/OV/CL/HC/SD/CD/HS | Advantage 1000 Respirator Family | 464046 |
| TC-84A-1525 | N95/AM/MA | Advantage 1000 Respirator Family | 464033 |
| TC-84A-1529 | N95/OV | Comfo N95 Filter 816291 | 464031 |
| TC-84A-1530 | N95/CL/HC/SD/CD/HS | Comfo N95 Filter 816291 | 464032 |
| TC-84A-1531 | N95/OV/CL/HC/SD/CD/HS | Comfo N95 Filter 816291 | 464046 |
| TC-84A-1532 | N95/AM/MA | Comfo N95 Filter 816291 | 464033 |
| TC-84A-1536 | N95/OV | Comfo N95 Filter 816291 | 464031 |
Source: MSA NIOSH approval inserts Advantage-1000, Advantage-200LS, Advantage-3200, Advantage-4000-Series, Advantage-420, Comfo-Classic, Comfo-N95-Filter-816291, UT-From-DuoTwin and others (material numbers 10021588, 10029528, 10084702, 10100439, 818201, 818205, 818206, 818362). Each insert states the respirator is approved only in the listed configurations; the cautions and limitations letters are printed on the insert.
Every MSA Comfo cartridge, filter and prefilter we list
| Part number | MSA chart description | NIOSH classes | Color coding | MSA pack |
|---|---|---|---|---|
| 464031 | Organic Vapor (GMA) | Organic Vapor, R95, N95 | Black | 10 in pkg. |
| 815178 | Organic Vapor/P100 (GMA) | Organic Vapor, P100 | Black/Magenta | 6 in pkg. |
| 464032 | Acid Gas (GMB) | Chlorine, Sulfur Dioxide, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Sulfide, R95, N95 | White | 10 in box |
| 464046 | Organic Vapor/Acid Gas (GMC) | Organic Vapor, Chlorine, Sulfur Dioxide, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Sulfide, R95, N95 | Yellow | 10 in pkg. |
| 815180 | Organic Vapor/Acid Gas/P100 (GMC) | Organic Vapor, Chlorine, Sulfur Dioxide, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Sulfide, P100 | Yellow/Magenta | 6 in box |
| 464033 | Ammonia/Methylamine (GMD) | Ammonia, Methylamine, R95, N95 | Green | 10 in box |
| 492790 | Multigas (GME) | Organic Vapor, Chlorine, Sulfur Dioxide, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Sulfide, Ammonia, Methylamine, Formaldehyde, Hydrogen Fluoride, R95, N95 | Olive | 10 in box |
| 815182 | Multigas/P100 (GME) | Organic Vapor, Chlorine, Sulfur Dioxide, Chlorine Dioxide, Hydrogen Chloride, Hydrogen Sulfide, Ammonia, Methylamine, Formaldehyde, Hydrogen Fluoride, P100 | Magenta/Olive | 6 in box |
| 815185 | Chlorine/Mercury Vapor/P100 (Mersorb) | Chlorine, Mercury Vapor, P100 | Olive and white zigzag/Magenta | 6 in box |
| 10153412 | Low-Profile P100 | P100 | Magenta | 16 in box |
| 489353 | Reusable snap-on cover (N95 and covers required for Comfo Respirators) | — | 1 in pkg.; 2 req. | |
| 489219 | R95 Reusable snap-on cover | — | 1 in pkg.; 2 req. |
Source: MSA Respirator Cartridge Chart 1000-86-MC (Feb 2017).
MSA shelf life and change-out statements
Shelf Life of Filter Cartridges: All particulate-only cartridges and filters have an unlimited shelf life. This includes Flexi-Filters, Comfo and Advantage style P100 cartridges. Also, Type HE PAPR cartridges that are particulate-only have unlimited shelf life. These include Optifilter and OptimairTL Type HE cartridges. Chemical and Combination cartridges for all APR have a recommended shelf life of 3 years. Please note that these cartridges do not have an "expiration date" printed on them. PAPR combination cartridges, gas mask canisters, including industrial gas masks, CBRN and Riot control canisters have an expiration date printed on the cartridge label. Generally these are 5 year expiration. While the P100 or particulate performance efficacy of these types of canisters may remain intact following expiration, MSA cannot advocate use beyond the expiration date.
Riot Control Canisters, CBRN Canisters, and Combination Chemical/Particulate Respirator Cartridges (GMA-P100, GMB-P100, GMC-P100, GMD-P100, GME-P100, GMF-P100 and GMI-P100) generally are limited use cartridges and have required changeout schedules.
Source: MSA Product Cleaning Guidance 1000-91-MC.
Catalog data
| Item | Manufacturer data |
|---|---|
| Style | Prefilter |
| Filter Class | N95 |
Source: Manufacturer published product data as carried in our catalog.
An N95 prefilter that adds particulate protection to MSA Comfo and Ultra-Twin twin-respirator cartridges and filters. It stops dusts, particles and mists that are free of oil.
- NIOSH N95, 95% efficient against oil-free particulates
- Fits MSA Comfo and Ultra-Twin respirators
- Protects against dusts, particles and mists
Sold by the pack
The price shown is for the full pack; quantity 1 = 1 pack.
MSA 816662 questions
What does the MSA 816662 protect against? The MSA chart marks N95.
Which MSA facepieces take the 816662? MSA Comfo threaded cartridges / Comfo respirators.
How does MSA pack the 816662? 10 in pkg..
Guides: cartridge change schedules · P100 vs N95 vs R95 · half mask vs full facepiece · assigned protection factors · what OSHA requires for fit testing · cleaning and storing respirators · all respirators by model and hazard.
