OC is the latest technology in defense spray compounds and is by far the most effective of the three major chemical compositions. When an aggressor is sprayed with OC, two things happen instantly. The first thing that happens is the attackers eyes will slam shut fast and hard. If the aggressor manages to forces their eyes open they will still be unable to see as the OC dilates the capillaries causing temporary blindness. At the same time the aggressor will be thrown into an immediate and uncontrollable cough that causes the attacker to double over.
Breathing is restricted to all but a the life supporting minimum.
The intense burning of OC will disorient the attacker and make them no longer able to continue with any aggression. The effects will generally last 20 to 30 minutes. The American Security Institute recommends a defense spray containing OC in any formulation and concentration for self defense by law enforcement and civilians. Unlike OC which is an inflammatory agent, these two chemicals are man made and are irritants to membrane tissues. This is because CS and CN take longer to be effective, anywhere from 5 seconds to 30 seconds where the effects of OC are instant.