RC4 fi lter respirator with hood. In combination with a P3 fi lter, it protects face and respiratory system from splinters, fumes, dusts and can be conveniently used for light duty sand blasting works. ACS 951 and ACS 952 constant fl ow air line respirator provided with a full face mask with hood or with helmet. They protect both the respiratory tracts and the parts of the body more exposed to abrasive blasts. ACS 951 with mask and hood. ACS 952 with helmet in ABS and waistcoat.