Silicone seal provides excellent facepiece seal, creating a barrier against contaminants. Silicone nose cup is soft and comfortable for all-day wear. Polycarbonate lens with wide field of vision maximized peripheral visions plus downward view for high impact. Wide viewing area provides distortion-free visibility and optical clarity. Five-point strap option includes center strap to help position and hold the mask for a more secure fit and offers quick, easy adjustments. Industrial mesh headnet option provides another choice for user comfort preference and can be used under hard hat. Threaded cartridge connector secures cartridges and filters to avoid accidental disconnections. Can be adapted to side mount CF-SAR, front mount CF-SAR, side mount PAPR and front mount PAPR eliminating the need to fit test workers on several respirators.