How would it not filter paints? Do you even know how a filter works? A filter is basically a layer of material, With a varied size of holes in it. The smaller the holes throughtout the material. The smaller the items alowed to get threw are. Micro organisms are much smaller then paint fumes. So if it can keep out micro organisms, Then im pretty damb shure it will keep out paint fumes. Unless your just talking about the aerosol from the can. THEN you need special material for that.