[Class : 42] Scientific And Technological Services And Research And Design Relating Thereto; Industrial Analysis And Research Services; Design And Development Of Apparatus And Installations For Ventilating And Cooling Purposes; Air Purifiers; Outdoor, Indoor, Industrial And Household Standalone And/Or Integratable Air Purifiers; Air Sterilizing Apparatus; Air Purifying Apparatus And Machines; Air Handling Units; Cooling Appliances; Machines And Installations; Ventilation Apparatus And Installations; Clean Room Installations; Cooling Units For Industrial Purposes; Air Filters For Industrial And Household Purposes; Air Filtering Installations; Air Filters For Air Conditioning Units; Coils [Parts Of Distilling, Heating Or Cooling Installations].