DECONTAMINATION DEVICE AND DECONTAMINATION METHOD

PROBLEM TO BE SOLVED: To provide a decontamination device and a decontamination method which perform sterilization treatment of an object to be treated and endotoxin inactivation treatment at the same time.SOLUTION: A decontamination device 1 comprises a chamber 4, a hydrogen peroxide vapor generator 2 connected to the chamber 4, and an ozone gas generator 3. The decontamination device 1 includes at least one of a decompression device 7 reducing the pressure in the chamber 4 and a humidity controller 5 adjusting apparent relative humidity in the chamber 4, and includes a decomposition device decomposing at least one of hydrogen peroxide and ozone discharged from the chamber 4. A decontamination method is a method of sterilizing an object to be treated and inactivating endotoxins contaminating the object to be treated by supplying a hydrogen peroxide vapor and an ozone gas into the chamber 4 to bring the object to be treated, the hydrogen peroxide vapor, and the ozone gas into contact with each other in the chamber 1. In the decontamination method, the temperature condition in the chamber 4 is preferably 20-60°C, and apparent relative humidity at 50°C is preferably 50-99.9% RH.SELECTED DRAWING: Figure 1 【課題】被処理物の殺菌処理と同時期にエンドトキシン不活化処理を行う除染装置と、除染方法の提供。【解決手段】チャンバー４とチャンバー４に接続する過酸化水素蒸気発生装置２とオゾンガス発生装置３とを備える除染装置１。除染装置１は、チャンバー内を減圧する減圧装置７とチャンバー４内のみかけの相対湿度を調節する調湿装置５とのいずれか一つ以上を備え、チャンバー４から排出される過酸化水素とオゾンとのいずれか一つ以上を分解する分解装置を備え、チャンバー４内に過酸化水素蒸気及びオゾンガスを供給して、チャンバー１内で被処理物と過酸化水素蒸気とオゾンガスとを接触させ、被処理物を殺菌しかつ被処理物を汚染するエンドトキシンを不活化する方法であって、チャンバー４内の温度条件は20〜60℃が好ましく、50℃でのみかけの相対湿度は50〜99.9％RHが好ましい除染方法。【選択図】図１