The BLS Reusable full face masks are available in silicone or thermoplastic rubber. They are characterized by the single thread connection, EN148-1 certified, to be used in combination with our wide range of universal filters BLS 400 series that protect against gas, vapours and toxic particulates. Standards = EN 140:1998 Anti fog
Highly precise adjustment
Very good resistance to high heat
Fixed on 6 connection points