The dry-air shower cabinet is designed using just air circulation with no fresh air supply. the clean air is blown into the unit through nozzles situated on all four corners. This produces strong gravity forces that ensure a thorough cleansing of personnel. Two return channels placed at floor level suck out the used air, which is then passed through H12, H14 or H16 filter cells and returned to the circulation ventilation. The combination of a dry-air and a wet shower is possible!