Dryers, namely, dryers used for the removal of solid, liquid and vapor contaminants from air and gases; industrial dehumidifier; industrial dryers for heating and dehumidifying; dehumidifiers for commercial use; air conditioning apparatus and installations; air conditioning installations; air filtering installations; air filters for industrial installations; heat exchangers not being parts of machines; air purifier; gas filtration devices, namely, filters and filtering devices for gas conditioning; components for gas filtration elements, namely, air filters for industrial installations; installations for air-conditioning purposes; installations for drying, ventilating, and dehumidifying purposes, namely, drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems, drying apparatus for chemical processing, dehumidifiers, ventilating fans for commercial and industrial use; installations for removing impurities from gases, namely, filters and filtering devices for gas conditioning; heat exchangers, namely, other than parts of machines; household air cleaners; electric air deodorizers; rotary regenerative heat exchangers, namely, other than parts of machines; installations for treating gases, namely, filters and filtering devices for gas conditioning; rotary heat exchangers, namely, other than parts of machines; heat exchanger rotors specially adapted for industrial dryers for heating and dehumidifying, heat exchanger rotors, namely, structural parts for heat exchangers for chemical processing; rotors, namely, replacement parts of air filtering installations, replacement parts of dehumidifiers; honeycomb matrix rotors, namely, structural parts of air filtering installations, structural parts of dehumidifiers; replacement, structural parts and replacement, structural fittings for all the aforesaid goods