The NOG air vents are equipped with a thermostat which ensures automatic operation of the heater. It is responsible for turning it on when the temperature of the incoming air is lower than about 3°C and turning it off when its temperature rises above about 10–15°C. Half-ceramic heating elements automatically regulate power consumption depending on the amount and temperature of the flowing air. The NOG ventilators are equipped with an air intake that is responsible for the intake of air from the outside. The design of the air intake protects against precipitation and has a mesh protecting against insects. Inside the building, the air vent is equipped with a diffuser with a layer of insulation that prevents the formation of condensation in the winter and acts as a noise damper. The diffuser allows for precise adjustment of the air flow rate by the user. Optionally, the air vent can be equipped with a flow stabilizer. It regulates the stream of air flow, limits the airflow and prevents it from changing its direction. Each air vent comes with an additional air filter (separately, for self-assembly), which captures dust and other airborne contaminants. The diffuser is painted in RAL9003.