1. Natural ventilation: The use of wind and thermal buoyancy to promote air movement.
2. Mechanical ventilation: The use of fans or other devices to force air movement.
3. Exhaust ventilation: The removal of stale air from a building.
4. Supply ventilation: The introduction of fresh air to a building.
5. Balanced ventilation: A combination of exhaust and supply ventilation to maintain balanced air pressure in a building.
6. Heat recovery ventilation: A system that recuperates the heat from the exhaust air and uses it to warm the supply air.
7. Whole-house ventilation: A ducted system that provides ventilation to the entire building.
8. Spot ventilation: Fans or other devices used in specific areas of a building to remove pollutants or moisture.
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