USP3 and PIC/S5 listing additional items to generally be concluded from the OQ which include cleansing and leak tests. Decontamination cycle progress happens after the completion in the OQ and it is reviewed in detail in section six. In Health care, VHP sterilization is employed for decontaminating functioning rooms, https://tailinscitech.wixsite.com/tailinscitech/post/vhp-sterilization-solutions-by-tailin-bioengineering-protecting-pharma-and-laboratory-environments