Air filtering installations; air filtering units; air filters for HVAC units; air filters for domestic and commercial use; household air cleaners; air treatment units; ultraviolet germicidal disinfection units, namely, disinfecting ultraviolet lamps housed in a container or cover for disinfecting objects placed therein; ultraviolet reactors; hydroxyl radical reactors; in the nature of disinfecting ultraviolet lamps for residential heating, ventilation, and cooling systems; duct mount for airstream disinfection; photocatalytic oxidation (PCO) air filters for domestic use; Ultraviolet light product, namely, an ultra-violet lamp device for non-medical purposes for residential HVACR systems, duct work and evaporator coils and drain pans; activated carbon disinfection units, namely, activated carbon filters for filtering disinfecting and filtering air; air filters, in the nature of disinfecting activated carbon filters for residential and commercial heating, ventilation, and cooling systems; activated carbons for domestic and commercial air filtering; air filtration and disinfection devices using ultraviolet light and activated carbon to filter and neutralize pollutants, odors, allergens, mold, germs, viruses, and volatile organic compounds from household and commercial air and from HVACR systems and duct work