Air cleaning units; Air cleaning units containing an air filter, ultraviolet lights and a photocatalytic filter; Air conditioners; Air conditioners for vehicles; Air conditioning apparatus; Air conditioning apparatus and installations; Air conditioning installations; Air conditioning panels for use in walk-in coolers; Air conditioning units; Air cooling apparatus; 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 handlers; Air purification units; Air purifiers; Air purifiers; Air purifying apparatus; Air purifying apparatus and machines; Air purifying units for Commercial, industrial and consumer use; Air sterilisers; Air-conditioning apparatus; Apparatus and instruments for use in the purification, separation and sterilization of liquids and gases used in the biotechnology, pharmaceutical, medical, biopharmaceutical and food and beverage industries; Central air-conditioning installations; Dryers for the removal of water vapor from compressed air and gases; Dryers used for the removal of solid, liquid and vapor contaminants from compressed air and gases; Electric air deodorizers; Electric air sanitizing unit; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filters and filtering devices for air and gas conditioning; Gas injectors for disbursing solids and/or liquids for purification and sterilization purposes; Gas purification machines; Gas recycling system comprised primarily of one or more of the following pieces of equipment, namely, pressure swing adsorption equipment, temperature swing adsorption equipment, perm selective membrane equipment, solvent extraction equipment, pervaporation equipment or solid adsorption equipment, for the recovery, purification and return of gases in industrial applications; Gas recycling system comprised primarily of pressure swing adsorption equipment for the recovery, purification and return of gases in industrial applications; Household air cleaners; Hydrogen-generation equipment and components, namely, hydrogen generators, hydrogen purifiers, hydrogen purification membranes, fuel processors, and steam reformers; Industrial air filter machines; Industrial air purifiers; Industrial apparatus using air for drying and cleaning components in the electronics, semiconductor, circuit board, pharmaceutical, medical, and food and beverage industries; Industrial scrubbers for removing particulate matter from the air during industrial processing, namely, Wet scrubbers, dry scrubbers; Ionisation apparatus for the treatment of air; Machine that generates purified water from the atmosphere and simultaneously purifies the air; Purification installations for sewage; Radiators; Regenerative thermal oxidizer used to destroy airborne volatile organic compounds, airborne toxins, odors and other air pollutants from industrial operations; Separators for the cleaning and purification of air; Separators for the cleaning and purification of gases; Separators for the cleaning and purification of liquids; Sewage purification apparatus; Sewage purification installations; Waste water purification apparatus, installations and tanks; Waste water purification units; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water filtration and purification units and replacement cartridges and filters therefor; Water purification and filtration apparatus; Water purification installations; Water purification machines; Water purification tanks; Water purification units; Water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water