HTY-V600 Vapor Hydrogen Peroxide Generator (VHPS online sterilization for enclosed space and lyophilizer)is an instrument specially designed for biological decontamination. It can be used to conduct VHPS online sterilization of lyophilizer as well. It takes the advantages of that hydrogen peroxide has better sporicidal efficacy in gas state than the liquid state at room temperature and that the generated free hydroxyl groups are able to attack cell components, including lipids, proteins and DNA organization, which achieves the requirement of biological decontamination.