This mask is NIOSH approved and meets 42 CFR 84 requirements for protection against solid or liquid particles (excluding those containing oil).  Box/20 masks.

This mask is designed to help provide comfortable, reliable worker protection against certain non-oil based particles. Its lightweight construction helps promote greater worker acceptance and comfort and increased wear time.

This respirator features 3M's Advanced Electret Media (AEM), welded strap attachment, soft nose foam and adjustable noseclip to help provide a custom fit and secure seal.