Safir industrial respirator, rubber and plastic, British, 1950-1980 Safir industrial respirator 1950-1980
Dustite industrial respirator, rubber and metal, made by Willson, U.S.A., 1920-1960 Dustite industrial respirator 1920-1960
Supasafir MK.II industrial respirator, metal, cloth and rubber, and original box, made by Chapman and Smith Ltd., British, 1950-1980 Supasafir MK.II industrial respirator 1950-1990