How To Clean Air Ducts

For homes with centralized air conditioning, air ducts are an essential means for circulating and cleaning air. It is a forced air system used for heating and cooling purposes. These devices help improve the quality of indoor air, and relatively lessen the indoor pollution. However, dust, molds, mildew, pollens and vermin could enter and contaminate the air ducts, thereby risking the health of the house or building’s occupants. Proper cleaning and maintenance of air ducts is therefore necessary to ensure its safe use. Here are some tips on how to clean your air ducts.

  • Prepare the necessary cleaning tools and equipment. Prepare a screwdriver, heavy-duty or thick working gloves for hand protection, a flash light, a cleaning brush, rags or paper towels, and a vacuum cleaner.
  • Do an ocular inspection. Check the system, including the ducts for supplying and returning air, the duct registers, heat exchangers, diffusers, grille, condensate drip pans coils, fan housing, and fan motor. Also do a check on the housing of the air handling unit.
  • Prepare a working space. Set a certain spot as you working space. Cover the area with old newspapers or a drop cloth, to ensure that the area and equipment remain safe and clean.
  • Put on your working gloves. Protect yourself from untoward accidents. Put on a pair of working gloves before starting to work.
  • Unmount the air duct. Using the screwdriver, remove the air duct covers, grilles and diffusers. Check the walls for molds, dusts, dust mites and vermin. Pay attention to the insides, especially the corners and crevices. Furnace filters might enclose the walls and block your view. Use your flashlight to inspect the dark parts.
  • Brush the dirt off. Use a brush and a rag to take out all the dirt. Gently but steadily, scrub off any dirt and dust found in the air ducts.
  • Vacuum the air ducts. After brushing off the dirt and dust, use a portable vacuum cleaner to remove excess dust Keep the power on low or medium. This will prevent wall damage from excess vacuum pressure, but still cleans the area from dirt and dust.
  • Attach the parts. After you finished vacuuming the interior, install the air grille plates and diffusers back on. Vacuum those , too to make sure you have taken off all of the dust particles trapped inside when you vacuumed your air ducts.
  • Mount the air duct cover. Return the air duct cover and screw tightly.

Note: If you have found molds, dust mites and vermin infestation in your air ducts, it is best to call professional air duct-cleaning providers. This way, you can be sure that the air duct system will be safe to use after cleaning and disinfecting by professionals. Molds and mildew can be dangerous and even fatal when inhaled. Vermin will bring in bacteria and germs, which one can also inhale from the air. In these cases, it’s best to go for professional work.

It is important to clean your air duct often. This will not only give you clean air, it will also preserve your air ducts and protect them from wear and tear.


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