9
Instruments and apparatus for air analysis; Controls for installations and apparatus for air pollution control and air purifying; Controls for installations and apparatus for purifying and treating liquids, and parts therefor; Controls for fans; Controls for air treatment installations; Controls for dust removing installations and apparatus; Controls for filter installations and apparatus for exhaust air purifying, and parts therefor; Fire extinguishing installations; Air analysis apparatus; Emission recording devices of metal (checking (supervision) apparatus); Hardware; Computer software
11
Installations and apparatus for air pollution control and air purification and parts therefor; Installations and apparatus for the treatment of liquids and parts therefor, being parts for water supply apparatus and/or sanitary installations; Fans; Air treatment installations and apparatus, and parts therefor; Filter installations and apparatus for exhaust air purifying, and parts therefor; Air injection apparatus being parts for air-conditioning installations; Air reheaters; Airfilters; Air filtering installations; Ionization apparatus for the treatment of air; Air cooling apparatus; Air purifying apparatus and machines; Germicidal lamps for purifying air; Air sterilisers; Air driers; Ventilation [air-conditioning] installations for vehicles; Ventilation installations (air-conditioning); separators for purifying air; Dust separators being air purification apparatus
37
Repair, installation and de-installation of dust absorbing, extraction and binding compositions, air freshening preparations, air purifying preparations, ducts of metal for ventilating and air conditioning installations, air condensers, aerocondensers, filters for cleaning cooling air, for engines, air pumps (garage installations), suction systems, suction apparatus and machines for industrial purposes, and parts therefor, industrial vacuums and vacuum systems, and parts therefor, instruments and apparatus for air analysis, controls for installations and apparatus for air pollution control and air purifying, controls for installations and apparatus for purifying and treating liquids, and parts therefor, controls for fans, controls for air treatment installations, controls for dust removing installations and apparatus, controls for filter installations and apparatus for exhaust air purifying and parts therefor, fire-extinguishing installations, air analysis apparatus, installations and apparatus for air pollution control and air purifying, and parts therefor, installations and apparatus for the treatment of liquids, and parts therefor, fans, air treatment installations and apparatus, and parts therefor, dust removing installations and apparatus (industrial), and parts therefor, filter installations and apparatus for exhaust air purifying, and parts therefor, air injection apparatus, air reheaters, air filters, air filtering installations, ionisation apparatus for the treatment of air, air cooling apparatus, air purifying apparatus and machines, germicidal lamps for purifying air, air sterilisers, air dryers, ventilation (air-conditioning) installations for vehicles, ventilation (air-conditioning) installations and apparatus, emission recording devices, extractor structures, extraction tables, extractor hoods, extraction ducts, components for ventilating pipes and ducts, shut-off valves, throttle elements, valves (shut-off) of metal, air-intake and exhauster structures, cubicles for emission recording, sound protection devices, steel structures supporting ventilation systems; Rental of filters for cleaning cooling air, for engines, air pumps (garage installations), extraction installations, extraction apparatus and machines for commercial and industrial purposes, and parts therefor, industrial extractors and extraction installations, and parts therefor; Rental of extractor structures, extraction tables, extractor hoods, extraction ducts, components for ventilating pipes and ducts, shut-off valves, throttle elements, valves (shut-off) of metal, air-intake and exhauster structures, sound protection devices, steel structures supporting ventilation systems