Wildfire 1/2 oz Pepper Spray w/Quick Key Release Key Chain. The WILDFIRE® PEPPER SPRAY is hot, hot, hot. The Major Capsaicinoids are the true heat measure, WildFire has the hottest on the market at 1.4% Major Capsaicinoids. In addition to causing an attacker pain, The WildFire 10% oleoresin capsicum formula swells the mucous membranes, which makes breathing difficult, and swells the veins in the eyes, causing the eyes to close. It’s made from 2,000,000 SHU’s of raw pepper and these effects can last up to 45 minutes and cause no permanent damage. Wildfire 1/2 oz. Pepper Spray has a range of 6-8 feet and comes with a quick release keychain and pocket clip. Each unit provides 6-10 one-second bursts and comes with a safety lock.