Cleaning air ducts – Home Maintenance
http://www.houselogic.com/home-advice/heating-cooling/cleaning-air-ducts/
Should you have your air ducts in your home cleaned – EPA
http://www.epa.gov/iaq/pubs/airduct.html
Indoor Air Quality Association
www.iaqa.org
The National Air Filtration Association
www.nafahq.org
Air Infiltration and Ventilation Centre
www.aivc.org
American Academy of Allergy Asthma and Immunology
www.aaaai.org
www.aanma.org
Health House
www.healthhouse.org
Why you should have your dryer vent cleaned
http://www.consumerreports.org/content/Special/Appliances/Reports/Images/dryer/Dryer-fire-caution.html
Why duct cleaning can clean the air
http://www.thestar.com/Athome/article/192960
