Air cleaning units; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air conditioners; Air conditioning apparatus; Air conditioning installations for cars; Air conditioning installations for vehicles; Air conditioning units; Air filtering installations; Air filters for air conditioners in vehicle passenger compartments; Air filters for air conditioning units; Air filters for domestic use; Air filters for industrial installations; Air purification units; Air purifying apparatus and machines; Air sterilisers; Air sterilising apparatus; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air exchangers for cleaning and purifying air; Air filters for air conditioners in vehicle passenger compartments; Air filters for air conditioning units; Air washers; Fans for air conditioning apparatus; Filters and filtering devices for air and gas conditioning; Filters for air conditioning; Gas scrubbing apparatus; Gas scrubbing installations; Germicidal lamps for purifying air; Solar collectors; Solar energy receivers; Ventilating exhaust fans; Ventilating fans for commercial and industrial use; Ventilating louvers; Ventilation fan accessories, namely, grilles; Air-conditioning, air cooling and ventilation apparatus and instruments; Electric air deodorizers; Electric fans; Electric fans for personal use; Electric dispensers for air fresheners and deodorizers to be plugged into wall outlets; Electro-chemical flue gas scrubbing machines; Fans for air conditioning apparatus; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filters and filtering devices for air and gas conditioning; Filters for air conditioning; Industrial air filter machines; Separators for the cleaning and purification of air