OxyPRO is a dual-chambered carpet spot and stain cleaner. The oxygen activator from one chamber mixes with the tough cleaning agent from the other chamber as the trigger is pressed. Most oxygen activated products are either granules or pre-mixed liquid trigger sprays. OxyPRO is the first aerosol spot remover to mix the oxygen activator with the tough cleaning agents at the time of use. This ensures you get the full power of the oxygen activator to effectively remove the stain.