DIRECT AIR

Ducts of metal for ventilating installations; Metal construction materials, namely, exhaust vent hoses for external ventilation of furnaces, heaters, stoves and boilers; Metal roof vents for heating and cooling in residential and commercial buildings; Ventilating ducts of metal

Climate control systems consisting of digital thermostats, air conditioning, heating, ventilation and drying control devices

Air impellers for ventilation; Air-conditioning, air cooling and ventilation apparatus and instruments; Energy recovery ventilators; Heat recovery ventilators; Ventilating exhaust fans; Ventilating fans for household use