11
Apparatus and installations for heating, ventilating and steam generating purposes, and components therefor, included in class 11; Air conditioning apparatus and installations; Refrigerating apparatus; Drying installations; Heat storage apparatus; Air filtering installations; Filters for ventilating, air conditioning and air purification apparatus; Filters for air conditioning; Air humidifying installations; Air dehumidifiers; Apparatus and installations for drying purposes; Ventilation devices and installations; Systems, apparatus and installations for ventilating, air conditioning, air purification, heat recovery, humidifying and dehumidifying purposes; Radiators; Heating/cooling radiators, heating/cooling convectors; panel heaters; Heated towel rails; Solar collectors and heating systems; Installations for generating thermal energy from solar energy collectors; Heat exchangers (not parts of machines); Exhaust gas, air and water heat exchangers and systems; Heat pumps; Heat regenerators; Heat/moisture exchangers (enthalpy exchangers); Hot water cylinders; Pressurised water tanks; Tea pods; Desalination apparatus and installations; Electric apparatus and installations for heating purposes, electric heating cartridges and cartridge heaters; Electric apparatus and installations for refrigerating purposes; Cartridges for electrical cooling; Electrical cartridge coolers; Ventilating fans, In particular extractor fans, Silencers for ventilation systems and Ventilation pipes; Parts and components for the aforesaid goods, included in this class; Air purification apparatus and installations
37
Bulding construction; Repair of building technology apparatus and systems; Installation of building technology apparatus and systems; Installation, assembly, maintenance, remote maintenance, cleaning and repair of filters, burners for air filters, electric apparatus, heating apparatus, air conditioning installations, ventilating installations, refrigerating apparatus, machines, ovens, fuel cells, combined heat and power plants, pumps, water treating apparatus, air purification apparatus, installations and filters, solar installations, photovoltaic installations, heat pumps, steam generating installations and water heaters, and parts and fittings for the aforesaid goods; Configuration and modification of building technology apparatus and systems
40
Air purification; Air and water conditioning and purification