HTY-V200 Vapor Hydrogen Peroxide Generator (VHPS online sterilization for lyophilizer) is an instrument specially designed for sterilization under the vacuum state. It is applicable to conduct online sterilization of lyophilizer. It takes advantages of that hydrogen peroxide vapour vaporized from a concentration of 35? H2O2 (i.e.,hydrogen peroxide) solution by vaporizer. Then input the solution to the vacuum equipment and it works.