The aim of this book is to provide a comprehensive guide to cleaning and disinfection in controlled environments, in relation to both pharmaceutical facilities and hospitals. The book provides information relating to different types of disinfectants and the ways in which they inactivate or destroy microorganisms; provides advice on disinfectant selection; discusses regulatory requirements; outlines best practice advice for cleaning; provides up-to-date health and safety guidance; and discusses the latest technological developments, including vapor phase hydrogen peroxide used for barrier systems.