Air purification units; air purifying units for medical and non-medical uses; air filtration devices; air cleaning units; air purification devices that reduce microbiological contamination; apparatuses for cleaning, filtering and/or purifying air in buildings, offices, rooms, confined spaces, and industrial applications

Repair and maintenance of apparatus and machines for the treatment of air, sterilization of air, purification of air, solids (objects and surfaces) and liquids, apparatus for increasing and controlling hygiene conditions in confined spaces, apparatus for the treatment of air, sterilization of air, purification of air, surfaces, objects and liquids, apparatus and machines to increase the hygiene conditions of objects and all equipment and all surfaces impacting on the health of persons, of app...