To become good in using a pepper spray you have to find a way to practice. Wasting a real pepper spray is an option but no the best one. Using a inert water based practice pepper spray will provide you with a very cheap options.
This is water filled and pressurized like the real pepper spray to build up your confidence and trust in using a pepper spray on your attacker.
Our inert OC training canister feel and handles like our regular pepper sprays. Use one of the fake pepper sprays that is also used for the film industry.
Besides giving you the perfect opportunity to practice it will build up your confidence and trust in the pepper spray. Your reflex will help you not to have to think in a stressful situation. With practicing over and over you will have an almost automated reflex to pull your pepper spray, aim and spray.
People spend hours at gun ranges to become better in shooting. You should do the same with your pepper spray.