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Best form of Duct Cleaning?

We want to have our ducts cleaned, we receive flyers for this service, most are done with brushes, one with "whips" which is best? and why? also, some offer sanitizing but we wonder WHAT chemicals are contained in this process? we are sensitive to chemicals and do not want toxic products coming into our home and breathing spaces! Is sanitizing necessary and a good idea or too toxic? Thanks!

Timothy Miller
Re: Best form of Duct Cleaning?

Howdy the truck mounted vacuums do a better job as more suck. No reason to seal the duct as you have not had a house fire.

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