• Properly design your heating, ventilation and air conditioning system to ensure that the system performs efficiently and keeps the occupants comfortable.
  • Install sealed-combustion furnaces and water heaters to improve indoor air quality and reduce the danger of carbon monoxide contamination.
  • Install mechanical cooling devices such as fans to cool a building by creating a breeze rather than using energy-intensive air conditioning units.
  • Install high efficiency HVAC filters with a "MERV" rating appropriate for your system to improve indoor air quality.
  • Install Energy Star bathroom fans vented outdoors, on timer or humidistat to reduce moisture and mold issues.