A pocket-sized self-defense spray device is capable of dispensing a chemical irritant to cause temporary breathing difficulty and a burning sensation in the eyes of the target without any permanent damage. The device comprises a casing, a nozzle, and a multi-position trigger. The trigger is slidably mounted in the casing to be moveable from a safe position to an active position. The casing may contain a battery-powered light that is switched on to illuminate the target when the trigger is in the active position. The trigger button in the second position may then be depressed into an engaged position that causes chemical irritant to be discharged from a removable canister with a poppet valve into a nozzle chamber, and out the nozzle exit at a target. The casing includes an ergonomic finger grip that serves to prevent inadvertent discharge at the user, and ease of aiming at the target.