The Autonomous Air Diffusion Ceiling equipped with stretching fabric ensures efficient protection of patient as well as medical equipment and instruments placed in the immediate surroundings. Plexiglass apron prevents induction phenomenon. This system is dedicated to rooms to fit Iso 7 standard (or Iso 5 standard under flow) and to the pharmacy field. It ensures a protected zone and guaranties perfect protection of patient and medical staff. It fights cross contamination, hospital borne and postoperative infections.