The Avon FM53 protective mask is based on the U.S. M50/JSGPM (Joint Services General Purpose Mask) and sharing key technologies, provides maximum operational flexiblity to counter multiple threat scenarios, including chemical, biological, nuclear and radiological (CBRN) agencts, Toxic Industrial Chemicals (TICs), and Toxic Industrial Materials (TIMs). The C50 offers high protection, outstanding field of vision, and superior comfort. The invative design features optimize the user's time in the operational area. Ideal for: Battlefield CBRN protection, first responders, correctional officers, specialist law enforcement & counter terrorism operations. SIZE LARGE Approval article 10 type-examination to PPE Directive 89/686/EEC (certificate number CEC40136-A1) NIOSH CBRN Cap 1 approved with the CBRNF12B filter (TC-14G-0285) , CBRNCF50 filter (TC-14G-0318) and the CBRNCF50i filter (TC-14G-0339)