3M 7907S Full Face Respirator is designed for demanding tasks that require highest face and respiratory protection. Durable premium silicone facepiece with double-flange face seal and comfort one-size-fits-all configuration; large polycarbonate scratch and impact resistant visor with a wide field of view; six-strap easily adjustable quick release buckles for perfect fit and simple removal; 3M Cool Flow Valve reduces heat build-up to offer workers comfortable protection, even in hot and humid conditions; integrated speech diaphragm helps communicate more clearly