Full facepiece respirators may be used up to 50 OSHA PEL or applicable government standard, whatever us lower. If exposure levels are not known, a fresh air system is recommended. 3M recommended for spray painting laquer, enamel and pesticides. Reuseable design - changeable filters and cartridges affords eye and respiratory protection Includes: 1 reuseable facepiece, 2 organic vapor cartridges, 4 P95 filters, 2 filter retainers and 2 face sheild covers. Spray Paint Respirator - Organic Vapor is a medium, and fits 70% of the people, or people with a hat size smaller then 8 1/4, with a average face.