Check the listing for details. MSA Millennium Low Profile Filter Canister 40mm NATO P100/CS/CN Factory Sealed. Condition: New. Listed at 28.59 USD. MSA Millennium Low Profile Filter Canister 40mm NATO P100/CS/CN Factory Sealed, P/N: 818263For training Only, Expired 2007/2008 Foil Intact MSA 818264 Canisters, Chemical Warfare, Riot Control. Contains chemical sorbents and a P100 filter to attract, retain, and neutralize contaminants. NIOSH TC-14G-0270 and DHHS approved approved for respiratory protection in atmospheres containing Chloroacetophenone (CN), Chlorobenzylidene (CS) Gases, and particulates under 42 CFR 84 P100 classification (99.97% efficiency level). Recommended by MSA to be effective against CB agents, OC and HCN. MSA low profile NIOSH approved, a favorite of law enforcement / corrections - Full protection against all known biological and chemical agents - Third party tested against chemical warfare gases / CBA/RCA agents - Excellent protection against Sarin (and its surrogate DMMP) -Designed for protection against chem warfare gases -Used by the majority of federal and local agencies -Particulate filter is over 99.99% efficient against all particulates and is appropriate for protection against biological aerosols. -Slim profile perfect for face shields and helmets -Permissible Canister for P100/CS/CN