Feel more secure and capable of defending yourself by carrying pepper spray. The 3.1 oz. cannister can be carried by mail carriers, delivery personnel, meter readers, bicyclists or anyone out for a stroll. It's been effective in stopping both humans and animals intent on doing you bodily harm. Rated at 3% major capsaicinods (MC) and three million Scoville heat units (SHU), this uses a nonlethal, super-hot pepper-spray formula that instantly affects eye, nose and lung tissue. 15-ft. fog-spray pattern. Rated at 3% major capsaicinods (MC) 3.1 oz. cannister 15-ft fog-spray pattern