WildFire 9oz 1.4% MC pepper spray fire master is a fogger spray. 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. The 9oz Fire Master model is great for crowd control, military, correction, security and law enforcement officers. Great for civilian use as well. Approximately 38 one second burst and a range of 20 feet.