SAFETY WORKS SWX Series Paint and Pesticide Respirator, Mask Size: Medium, Facepiece Material: Thermal Plastic Elastomer, Head Harness Material: Thermal Plastic Elastomer, Disposable/Reusable: Reusable, Black/Blue, Suitable for: SWX Series Replacement Cartridges, Includes: Hygiene GuardFlexible facepiece material provides an excellent face-to-respirator seal which improves fit and comfortLong-life pre-filters are approved to the NIOSH P95 class, so they are at least 95% efficient against oil and non-oil based contaminants and are oil-proof so they have no time use limitationHygiene cover helps keep dirt out of mask when not in use and helps keep shape of seal intactHeadband swivels on hinges for improved comfort and fitTwo-piece neck strap for easier donning/doffingThis respirator is certified by NIOSH as an P95/OV respiratorThis face piece is only compatible with SWX Series replacement cartridges. No other cartridges are certified to be fitted with this maskOrganic vapor cartridgeIncludes a unique hygiene guard for clean storage and product protection