Patent ID: 8721983

Claim:
A sterilizer which is connectable to an external chamber, the sterilizer comprising: a sterilization gas generator configured to generate sterilization gas; a sterilization chamber; and a gas supply system comprising: a first gas supply system configured to supply the sterilization gas from the sterilization gas generator to the sterilization chamber; a second gas supply system configured to supply the sterilization gas from the sterilization gas generator to the external chamber; and a first circulation system configured to circulate the sterilization gas, air, or a mixture thereof in the sterilization chamber, wherein the first circulation system comprises an in-line circulator such that said sterilization gas, air or a mixture thereof circulates through the circulator and bypasses the sterilization gas generator; wherein the gas supply system includes a gas inlet port which is configured to collect the sterilization gas supplied to the external chamber therethrough and a filter provided downstream of the gas inlet port.