Patent ID: 8268238

Claim:
A system for recovery of a sterilant gas mixture from a sterilizer chamber, the system comprising: a gas recovery tank; a sterilizer chamber in gaseous communication with the gas recovery tank; a gas recovery assembly coupled to the gas recovery tank and the sterilizer chamber, wherein the gas recovery assembly is configured to transfer a sterilant gas mixture including at least one sterilant gas between the sterilizer chamber and the gas recovery tank; an analyzer assembly coupled to the sterilizer chamber, the analyzer assembly including at least one sterilant gas sensor configured to detect density of the sterilant gas; and a control module coupled to the analyzer assembly and to the gas recovery assembly, the control module configured to determine a transfer pressure for achieving a desired concentration of the sterilant gas and flammability of the sterilant gas mixture as a function of the density of the sterilant gas.