Solid particles of medium toxicity. Dusts of asbestos, aluminium, copper, barium, titanium, vanadium, chromium, manganese, hard wood dusts, coal dust containing more than 10% of free silica, mining industry, chemical industry, metallurgy (version with exhaust valve), hard woodworking.

for protection the respiratory track from dusts, solid particles aerosols and aerosols on water base and aerosols with dispersed phase to 10 x PAC.