11 lighting units; namely, lamps, laboratory lamps, light bulbs, light diffusers, heading units, refrigeration units, air dryers, ventilation units, air conditioning installations, air conditioners, air conditioning units, air purifying units; namely, air purifying installations, air purifying machines, air purifiers, air deodorizing units, air filtering installations, air filtering units, air sterilizers, ventilation hoods, disinfectant units; namely, installations and machines for air disinfection, heat exchangers, ionization units for the treatment of air, filters being parts of household or industrial installations, germicidal lights, germicidal lamps for purifying air, ultraviolet lights, not for medical purposes, ultraviolet ray lamps, not for medical purposes, fans being parts of air conditioning installations, fan cabinets, sterilizers not for medical purposes