Air purifying apparatus and machines; air purifiers; filters for air conditioning; filters for air purifiers; filter cartridge for air purifiers; air filtering for industrial installations; air filters for domestic use; gas scrubbing apparatus; filters for the purification of flue gases; air sterilizers; air conditioners; air-conditioning, air cooling and ventilation apparatus and instruments; installations and apparatus for heating, cooling, and ventilation purposes, namely, electric fans, air conditioning installations and apparatus; electric fans; fan heaters; fans for air conditioning apparatus; fans as parts for air-conditioning installations and apparatus; water filtration and purification apparatus; water filtering apparatus; apparatus for purifying tap water; water purification machines; filters for drinking water; electric water purifiers for domestic use; filters for water purifiers; kettles for filtering water; filters for electronic pet waterers; filters for animal-activated livestock waterers