Patent ID: 8658107

Claim:
An isolator comprising: a work chamber for performing a work in which a biomaterial is handled; a sterilizing substance supply unit that is provided in a state independent from a gas flow channel including the work chamber in terms of heat and pressure, and that has a heater for heating a sterilizing substance to be vaporized, and that is configured to supply the vaporized sterilizing substance into the gas flow channel; a gas flow channel pressure adjustment unit configured to increase or decrease the pressure in the gas flow channel; a gas flow channel pressure detector configured to detect the pressure inside the gas flow channel; and a controller configured to control execution of a gas flow channel leak test for checking a gas leak in the gas flow channel based on a detection result by the gas flow channel pressure detector after making the gas flow channel pressure adjustment unit increase or decrease the pressure in the gas flow channel, and configured to perform heating of the heater in parallel with the execution of the gas flow channel leak test, wherein a heat insulating portion which insulates heat and a shield which insulates pressure are provided between the gas flow channel and the sterilizing substance supply unit.