Air filtering installations; Air purifying apparatus and machines; Air sterilisers; Air-conditioning apparatus; Air-conditioning installations; Gas scrubbing apparatus; Humidifiers; Water filtering apparatus; Water purification installations; Water purifying apparatus and machines; Water softening apparatus and installations; Electric air deodorizers; Filters for air conditioning; Filters for drinking water; Ionization apparatus for the treatment of air; Ionization apparatus for the treatment...

Central vacuum cleaning installations; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Floor cleaning machines; Road sweeping machines; Road sweeping machines, self-propelled; Robotic vacuum cleaners; Suction nozzles for vacuum cleaners; Vacuum cleaner hoses; Vacuum cleaners; Machines and apparatus for carpet shampooing, electric