Useful Links

Should You Get Your Heating Ducts Cleaned?
http://www.cmhc-schl.gc.ca/en/co/maho/gemare/gemare_011.cfm

EPA - Should you have the air ducts in your home cleaned?
www.pueblo.gsa.gov/cic_text/housing/air-ducts/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

Allergy and Asthma Network
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