Ensures a quick, safe, easy method for wiping respirators between full cleaning periods. Large (5" x 8"), individually foil-packaged towelettes contain 70% Isopropanol and are designed specifically for use on rubber respirator facepieces and other personal safety equipment. Alcohol Free pads are for use on respirator facepieces where the manufacturer recommends using a non-alcohol cleaning wipe. Active ingredient: Benzalkonium Chloride. Will not harm even the most sensitive rubber facepieces. 100 towelettes per box.