Sterilizer is mainly used to sterilize medical & surgical and pharmaceutical products & food and Spices Products, Maize Starch Products that cannot support conventional high temperature steam sterilization - such as devices that in company electronic components, plastic packaging or plastic containers. Normally the ETO used for gas sterilization is mixed with diluents such as carbon dioxide in different proportions from 10% ETO to 90% ETO. The commonly used gas concentration in the sterilizers is 450 to 1000 mg/lit of chamber volume (measured as pure ETO)