The particle-filtering half mask is a full respiratory protective device, consisting entirely or mainly of a filer material. Particle-filtering half masks are only suitable for us as breathing masks to protect against non-volatile solid and liquid particles (Dust. smoke. aerosols. aerosol vapour). Offers protection against harmful fine dust such as dust from metal, wood, glass fibre. Disposable half mask with double straps. Protection against low to average toxic dust, fumes and aqueous mist. Not to be used in spray painting. Non valve.