Air Duct Cleaning
- A build up of 0.42 inches of dirt on a heating or cooling coil can result in a decrease in efficiency of 21%
- Indoor air quality is the United States' number one environmental health problem.
- Indoor air is found to be up to 70 times more polluted than outdoor air.
- Indoor air is anywhere from 2 to 10 times more hazardous than outdoor air.
- Environmental Protection Agency