Zero Residue Oxidizer That Destroys Odor at the SourceAtsko Zero N-O-Dor Oxidizer uses a zero residue hypo allergenic formula to deodorize clothing hair skin and other wettable surfaces quickly and safely. It works by permanently oxidizing organic molecules into odorless compounds rather than masking odors. Zero residue formula Hypo allergenic design Deodorizes clothing hair and skin Destroys odors instead of masking Safe for many surfaces