Heating, Ventilation, and Cooling (HVAC) System: Improve indoor air quality with best practice installation of ducts and equipment to minimize condensation problems, whole-house and spot ventilation to help dilute and exhaust indoor pollutants, and air filtration to remove airborne particulates.
Combustion-Venting Systems: Protect residents from potential exposure to combustion gases by installing direct-vented or power-vented gas- and oil-fired equipment, properly vented fireplaces, garages fully sealed from living spaces and equipped with a continuously operated exhaust fan, and carbon monoxide alarms in each sleeping area.