PROBLEM TO BE SOLVED: To improve efficiency of a decontamination process of the inside of a chamber to be decontaminated and an intake filter.SOLUTION: An isolator includes: the chamber to be decontaminated, including an inlet provided with an intake filter and an outlet provided with a discharge filter a first flow path through which outside air is taken into the chamber via the intake filter a second flow path through which gas in the chamber is discharged via the discharge filter a blower configured to take in the outside air to the chamber through the first flow path, as well as produce an air current to discharge the gas in the chamber through the second flow path a decontaminating gas supply unit configured to supply decontaminating gas into the chamber without flowing through the intake filter and the discharge filter and a third flow path through which the gas in the chamber is discharged via the intake filter when the decontaminating gas is supplied into the chamber.COPYRIGHT: (C)2013,JPO&INPIT【課題】 除染対象室内および吸気フィルタの除染処理の効率を向上させる。【解決手段】 吸気フィルタを備えた吸気口および排気フィルタを備えた排気口を有する除染対象室と、前記吸気フィルタを介して前記除染対象室内に外気を吸気する第1の流路と、前記排気フィルタを介して前記除染対象室内の気体を排気する第2の流路と、前記第1の流路を介して前記除染対象室内に外気を吸気するとともに、前記第2の流路を介して前記除染対象室内の気体を排気する気流を発生させる送風機と、前記吸気フィルタおよび前記排気フィルタを介さずに前記除染対象室内に除染ガスを供給する除染ガス供給部と、前記除染対象室内に前記除染ガスが供給される場合に、前記吸気フィルタを介して前記除染対象室内の気体を排気する第3の流路と、を有する。【選択図】 図1
