General ventilation in the home

General ventilation in the home

Opening a window and turning on a window fan will improve general ventilation in mild weather. Sometimes, air exchange with outdoors happens through cracks around windows and walls. But if your house is weatherized, or if you notice air quality problems, you may need help to install a system to bring air in and out of your home. Most home heating and cooling systems move air around, but do not mechanically bring fresh air into the house.