[ Dehumidifiers, for removal of moisture or water vapor from the air; product dryers, namely, dryers used to remove moisture from seeds, wood, plastics, resins, spices, powders, food concentrates, tea, coffee, leather, fish, soft gelatins and other products from which the removal of moisture may be considered desirable; industrial dryers for heating and dehumidifying, and ] desiccant rotors for drying and controlling humidity, all for use in such industries as the pharmaceutical, seed, chemical, electrode/microfilm storage, analytical instrumentation, computer installation, product drying, electrical, food, instant coffee manufacturing and biscuit industries; [ air conditioning equipment and systems, namely, air conditioning units for domestic, commercial, and industrial use, packaged air conditioning units, desiccant based air cooling units for domestic, commercial and industrial use, fresh air treatment units comprising air handlers, ] rotors and cassettes for moisture and humidity control, dehumidifying and drying, for domestic, commercial, and industrial use; [ air purifiers and air filters, packaged air purifying units, desiccant-based cooling units, fresh air treatment units and air handlers, all for cleaning air of outdoor pollutants such as dust, contaminants, viruses and bacteria and all for domestic, commercial, and industrial use; air ionizers; air sterilizers; air-handling units, namely, evaporative air cooling units and industrial air drying units for heating and dehumidifying; parts and accessories for all of the foregoing wares, namely, electronic sensors for monitoring moisture, humidity and drying levels, air filters, and ventilating fans; energy recovery ventilators for energy recovery and ventilation; fresh air preconditioners; treated air purifying units for commercial, domestic, and industrial use; air handling units for treating fresh air; ] heat recovery wheels, namely, heat recovery cassettes and enthalpy wheels; desiccant rotors for recovering sensible and latent energy from waste energy of conditioning equipment to improve, maintain and enhance the quality of indoor air in conditioned spaces such as hotels, hospitals, commercial buildings, auditoriums and all other types of conditioned spaces; [ electronic sensors and electronic display monitors for sensing and monitoring indoor air quality, air filters, ventilating fans, ] evaporative air cooling pads, [ evaporative air cooling units, humidifiers, air conditioning units, industrial air dryers for heating and dehumidifying, ] air filters, air purifiers, [ industrial driers, ] heat exchangers, [ and ventilators, all for the ventilation of HVAC and refrigeration apparatus and installations ]