Select from 3 TruAir masks to guard against specific breathing hazards, including aerosol vapors. Standard version offers N95 level filtration; Plus model provides N99 filtration; and Ultra supplies P100 class protection. Standard and Plus masks feature large, molded shell that reduces breathing resistance to prevent user fatigue, even when wearing mask all day. Non-latex, elastic head strap, along with adjustable nosepiece, assure a secure fit. Available with exhalation vent that prevents hot air from building up and hampering normal breathing. Packaged in boxes of 10 or 20 masks. Ultra version features conforming facial seal and individually adjustable, latex-free head straps for a custom and secure fit. Standard vent helps reduce hot air buildup. Comes in box of 5 masks. All masks come with detailed fit-testing protocol in 3 languages, with accompanying pictographs to ensure safe and correct use.