OUnsaturated Chem. Vapor sterilization

–similarto autoclave, except chemicals (alcohol, formaldehyde, ketone, acetone andwater) are used instead of water. – OSHA requires MSDS because of chemicaltoxicity. –Does not rust or corrode instruments, wide range of things can besterilized, short cycle time. – Disadvantage: needs ventilation because of fumesor formaldehyde and methyl alcohol are released. Unpleasant odor –Pressure: 20 psi –temp: 270 – time: 20–40 min