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Creepy Things You'll Find in Your Air Ducts

ghost icon coming from vent

With spooky season here, some things may be crawling or floating around your air ducts.

These pollutants can impact your home’s indoor air quality, so it is important to be aware of them.

Here are some of the common creepy pollutants and critters that could be lurking in the dark corners of your air ducts.


Bacteria is an organic pollutant that your air filter should be keeping at bay. It’s practically invisible to the naked eye, but that doesn’t mean it isn’t there!

To get the cleanest indoor air, consider installing air purification systems within your home. This will help put your mind at ease and keep your family breathing healthy air.


Dust is another indoor air pollutant that can severely impact your home’s air quality. Everything in your house collects dust, day after day.

When your dust is pushed into your air ducts it should be captured by your air filter. To ensure this happens, your air filter needs to be clean and efficient.

It should be changed at least once every three months.


These crawling critters may be scurrying around in your system. Since rats and mice are small, they can fit through almost any cracks or gaps in your home or system.

They are most dangerous because they chew and could damage the functioning of your system. When rodents are around, their droppings may also end up in your ducts, releasing toxins into the air.

If you think something spooky may be lurking in your ducts, don’t hesitate to contact the HVAC experts at DG Heating & Air Conditioning. Visit us online, or contact us by phone at (408) 669-3496 to learn more about how we can help.