I just wanted to touch on the topic of “air duct sanitizing”, since some of my customers tell me that other companies are recommending it and charging them $50 to $100 more to apply the sanitizer. Other companies are offering the service for free to get the job.
I am here to tell you that you do NOT need to sanitize your ducts. Microorganisms can’t live on non-organic surfaces, like metal duct work. Microorganisms live on organic surfaces, such as dust and dirt. So if you do a good job of cleaning the ducts, then sanitizing is unnecessary.
Many of the companies offering duct sanitizing are also doing so illegally. Any time you apply chemicals that kill anything, you need a pest control license. Ask the company if they have one of those. Also, any time a company uses any chemicals in or around your house, they need to provide you with a “Material Safety Data Sheet”, which spells out the possible dangers to your health. Again, I would be surprised if many duct cleaning companies provide these.
I remember a few years back, there was a duct sanitizing company offering franchises to people for fogging ducts. They did not clean them first. It was strictly duct sanitizing. Needless to say, they are out of business today.
The National Air Duct Cleaners Association (NADCA) does NOT recommend air duct sanitizing. In fact they don’t want their air duct cleaners putting chemicals of any kind in customers air ducts. NADCA is the largest and most respected air duct cleaning organization in the country. Here is a link to the article they published about duct sanitizing: https://nadca.com/system/files/nadca_white_paper_on_chemical_applications_in_hvac_systems_0.pdf
If you scroll to the bottom of the paper where they list the frequently asked questions, you will get all the info you need. Example: the very first question is, “What is the position of the National Air Duct Cleaners Association (NADCA) regarding the use of chemicals in ductwork?” The answer is, “NADCA does not recommend the use of chemicals within ductwork unless there is a specific need.”
“Is sanitizing ductwork legal?” Answer, “NO. The EPA has not registered any products for sanitizing or disinfecting ductwork. Further, no fungicides are registered for use in ductwork.”
I think it is safe to say that the best way to get rid of the microorganisms in any duct system is to thoroughly clean them. It is recommended to clean the ductwork every ten to fifteen years. Make sure to do your research on the duct cleaning companies out there and don’t be suckered in by the free sanitizing gimmick.
Supreme Dryer Vent Cleaning – serving Des Moines, Ames and Central Iowa. Give us a call with your air duct cleaning questions or to get a free estimate. 515-230-6446
- Posted by admin
- On November 30, 2018
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