Oil proof and 95% efficientSold as Assembly only. Kit contains one Half-Facepiece, one pair of Organic Vapor (OV) Cartridges (not replaceable) and two pair of 5P71 (P95) Particulate Pre-Filters. Particulate filters can be replaced for extended product life. Should always be worn with filters in place. Please refer to the Respirator Parts and Filters chart for Particulate Pre-Filter replacements. Grinding, sanding, painting. Cartridges not replaceable Approvals: NIOSH 42 CFR 84 P95 (95% efficiency, oil proof) Securing Device: Strap