Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air conditioners for vehicles; Air filtering installations; Air filters for industrial installations; Air purifying apparatus; Air sterilisers; Electric room deodorizing units; Filters for air conditioning; Filters for drinking water; Ionisation apparatus for the treatment of air; Portable electric warm air dryer; Purification installations for sewage; Ultraviolet lamps not for medical purposes; Water filtering apparatus; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water fountains; Water heaters; Water purification installations; Water purifying apparatus; Water sterilizers