The Peracetic Acid (PAA) is a chemical product belonging to the peroxide compounds as Hydrogen Peroxide (HP). But unlike HP, it is a more potent antimicrobial agent, being rapidly active at low concentrations against a wide spectrum of microorganism. It is sporicidal even at low temperatures and it remains effective also in the presence of organic matter.

HMC9 was specifically studied and developed to be used in washing machine for high level disinfection. (chemical cold sterilization) of medical devices such as endoscopes, bronchoscopes laparoscopes, respiratory tubes, and anesthesia equipment in a hospital environment, dental practices, medical health care centres.