Size: Small (Facepiece designation 8101)Included Protection: Pre-assembled with two Organic Vapor (OV) cartridges Material: Soft, durable thermoplastic elastomer (TPE) facepiece and head harness Design: Low-profile, lightweight field of vision that fits easily under welding helmets or safety glasses Convenience: Snap-in cartridge connector design eliminates misthreading and includes a new inhalation valve with every fresh cartridge replacement Standard: Meets NIOSH certification standards for organic vapor protection