Gas Mask 2
Gas Mask 2 : A face covering device used to protect the wearer from injurious gases and other noxious materials by filtering and purifying inhaled air. It usually consists of a face cover with two eyepieces and a mouthpiece that contacts a canister containing a filter; the filter absorbs noxious gases as they pass through the canister to the mouth. The face cover also has a one-way outlet valve for exhaled air