The 6000 Series Reusable Half Masks are economical, low-maintenance, simple to handle and extremely lightweight. The 6000 series half masks by 3M can also be used with 3M? Supplied Air Systems for your increased convenience and flexibility. Features include a head harness with cradle suspension for a comfortable fit, lightweight elastomeric material for comfort during long periods of work, a low profile design that minimises interference with the field of view, and a twin filter design that provides lower breathing resistance. Conforms to EN 140:1998.