11 Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes; distillation apparatus; filters for drinking water; water purifying apparatus and machines; water purification installations; water purification units; water filtering apparatus; water sterilisers; water flushing apparatus; water heaters; water distribution and supply installations; water softening apparatus and installations; filters for drinking water; cooling installations for water; air purifying apparatus and machines; air conditioning apparatus; air sterilisers; parts and fittings for all the aforesaid goods