WILDFIREŽ 18% PEPPER SPRAY is hot, hot, hot. Wildfire is 18% Oleo Resin Capsicum (pepper) -- a derivative of 3 million Scoville Heat Units (SHU). Wildfire 18% pepper spray comes in 5 sizes: 1/2 ounce (available in red, blue and black), 1.5 ounce, 4 ounce, 9 ounce and 1 pound. 1/2 ounce and 1.5 oz units come with an injection molded poly holster, belt clip and keychain. Our 4 ounce is a favorite with security guards and gives great protection at home. Get the leatherette holster with belt clip to carry on your belt. It is available in a stream or fogger. 4 oz. stream has a range of 15-18 feet and 21-22 one second shots. The 4 oz. fogger has a range of 15-18 feet and 18-20 one second shots.