Sanitary apparatus and installations, namely, air conditioning and air purifying units; clean chambers in the nature of sanitary installations; air purifying apparatus and machines; air-conditioning apparatus; air-conditioning installations; ventilation apparatus, namely, air conditioning and air purifying units; air filters for air conditioning units, industrial installations, and air purifying units; air sterilizers; humidifiers; air reheaters; air handling installations in the nature of HV...

Air purification; air treatment, namely, air disinfecting, air sanitizing and air purifying; air deodorizing; rental of air purification apparatus; rental of space heating apparatus; rental of air-conditioning apparatus; air freshening; rental of water and air purification equipment; air and water conditioning and purification services; providing information relating to the rental of air conditioning apparatus; information and consultancy services relating to air purification and air treatmen...

Treatment of materials, namely, chemical treatment of contaminated air

Treatment of materials, namely material treatment of contaminated air