Phoenix, Arizona (NAPSI) - A growing number of heating, ventilation and air-conditioning (HVAC) professionals are using ozone to clean out odors from home ductwork. While it can be an effective approach, it is not without its critics.

For example, the National Air Duct Cleaners Association (NADCA) acknowledges it is a good idea to be cautious when using ozone.
If an HVAC professional is using an ozone generator, make sure it’s being used in accordance with the manufacturer’s instructions.

If the professional that you rely on uses ozone to clean your home’s HVAC equipment, NADCA offers the following tips:

• If an ozone generator is used, make sure it’s used in accordance with the manufacturer’s instructions.

• Be cautious when using ozone in interior spaces. Rubber, plastic or other materials may be oxidized by ozone treatment and possibly release toxic by-products.

• Make sure all employees are appropriately trained.

• Check to see if the HVAC contractor is a member of NADCA. To learn more, visit