Sanitary apparatus and installations, namely, air conditioning, air cleaning 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, air cleaning and air purifying units; air filters for air conditioning units, industrial installations, air cleaning and air purifying units; air sterilizers; humidifiers; electric air deodorizing apparatus; air reheaters; air handling installations in the nature of HVAC units; electrostatic air filters for industrial use, air conditioners, air cleaning and air purifying units; industrial air purifiers; air separation apparatus being separators for cleaning and purifying air; air purifying apparatus; air filtering installations; air circulation apparatus, namely, air conditioners, air cleaning and air purifying units; household air cleaners; air treatment equipment, namely, air sterilizers, air conditioners, air purifiers, air filtering apparatus, ionization apparatus for the treatment of air; air conditioning apparatus for industrial use; air cleaning filters being parts of air cleaning machines or installations; filters for air conditioning; smoke purifiers, namely, separators for the cleaning and purification of air containing smoke; ventilation apparatus, namely, HVAC units; aeration apparatus, namely, ventilation grilles and air filtering installations

Installation, maintenance and repair of sanitary apparatus and installations; installation, maintenance and repair of air-conditioning apparatus; installation, maintenance and repair of ventilation apparatus; repair or maintenance of air conditioning apparatus; installation of air conditioning apparatus for use in clean rooms; HVAC installation, maintenance and repair; providing information relating to the repair or maintenance of air conditioning apparatus; retrofitting of heating, ventilating and air conditioning installations in buildings; retrofitting of air conditioning installations in buildings; installation of dust extraction apparatus; installation of apparatus for ventilating; heating equipment installation and repair; installation and repair of air conditioning apparatus; installation, repair and maintenance of air reheaters; routine servicing of dust extraction apparatus; routine servicing of air conditioning apparatus; routine servicing of heating apparatus; routine servicing of ventilating apparatus; maintenance and repair of dust extraction apparatus; advisory services relating to the installation of heating and cooling apparatus; information and consultancy services relating to the installation, maintenance and repair of sanitary apparatus and installations; information and consultancy services relating to the installation, maintenance and repair of air conditioners and ventilation apparatus; information and consultancy services relating to the installation, maintenance and repair of air-purifying apparatus and machines

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 treatment; information and consultancy services relating to the rental of air-purifying apparatus and machines