How to Sanitize Ductwork

Put on your mask and safety goggles. This protection will keep you from inhaling dust, debris or mold spores. It will also protect your eyes from flying particles that may get into your eyes during the cleaning process.

Clean the ducts with the spinning head vacuum. All the dust, dirt and other particles must be vacuumed from the ducts. This is a vital component of the cleaning process, as dirt and debris provide an excellent habit for mold to grow.

Close all but one vent. Other vents may need to be covered by cardboard or taped shut. Other open vents will allow ozone to leak back out of the ducts. Mold will not be completely removed if the ozone is leaking during the sanitation process.

Attach a hose to the ozone generator, and run the hose into the open vent. Turn off the air conditioning, as ozone does not function well in cold climates. Turn on the ozone generator, which will spray ozone into the duct through the hose. The generator may need to be ran continuously for two days to exterminate fully all the mold from the ducts.

Clean up all the dust and dirt that spewed from the ducts during the vacuuming process. Leave your mask on when vacuuming and sweeping up these particles, as they could still contain mold.