Air cleaning units; Air humidifying apparatus; Air sterilisers; Automatic flush valves for toilets; Distillation apparatus not for scientific purposes; Evaporators for air conditioners; Hydromassage bath apparatus; Immersion heaters; Oil purifying installations; Portable electric heaters; Sanitary installations in the nature of steam rooms; Sauna bath installations; Steam heating apparatus; Steam valves; Ultraviolet lamps not for medical purposes; Valves as part of radiators; Watering machine...