air-conditioning installations; gas scrubbing apparatus; air purifying apparatus and machines; ventilation [air-conditioning] installations and apparatus; air sterilizers; humidifiers; dehumidifiers; fans [air-conditioning]; drying apparatus and installations; filters for air conditioning

surveying apparatus and instruments; dust measuring apparatus; air analysis apparatus; hygrometers; barometers; meteorological instruments; thermometers, not for medical purposes; pressure gauges; gas testing instruments; testing apparatus not for medical purposes; battery chargers; materials for electricity mains [wires, cables]; electrical adapters; downloadable smartphone application software; downloadable software applications for smartphones