3M Particulate Filter PF10 P3 R D DT-1135E, Suitable for use with certain 3M half and full-face tight-fitting respirators in negative-pressure mode, as well as 3M Powered Air Respirator System PF-600 Series, Protects against particles such as dust, mists, aerosols, smoke, mould, and bacteria, Protects against a range of particulates: Solid and liquid particles Toxic and radioactive particles Micro-organisms (e.g. bacteria and viruses) Enzymes EN 143:2000+A1:2006.