Do you get annoyed by a seemingly constant film of dust covering your house? Or maybe you have allergies and they always seem to flare up worse when you’re at home. While a certain amount of dust in your home is unavoidable, some things can make this worse and have you constantly cleaning up. One of these things could be your HVAC system.

Is your HVAC system expelling dust?

One of the benefits of HVAC systems is that they can help to improve the air quality in your home by trapping dust and other particles in the air filter. However, if your HVAC isn’t maintained properly, then it can have the opposite effect. If your house is excessively dusty, then here are a few things to check.

Air filters

Your air filter can trap some particles, depending on the type and quality of the filter, and prevent them from re-entering your home’s air supply. But, if the dust accumulates too much in the filter, then your HVAC system may end up just blowing it back into the room. You should check your air filter at least once a month to see if it needs cleaning or replacing.

At the same time, you should make sure that the filter is completely airtight, so it is not letting large particles out into the air. The type of filter you have may also play a role as some can trap smaller particles than others. If you have allergies or there are pets in your home, you may need an air filter with a higher MERV rating.


The ducts of your HVAC system are another component that may need cleaning if your house is becoming overly dusty. Dust can accumulate in your air ducts, too, meaning it can easily be blown out through your vents. A full duct cleaning should be done at least every few years and if you’ve just moved into a new home with a HVAC system already installed.

HVAC maintenance

Regular HVAC maintenance is also an important part of keeping your home as dust-free as possible. Professional maintenance ensures that your system is working as efficiently as possible and that there are no problems that could be causing dust to be expelled from the system. It also helps to prevent larger problems occurring in the future.

If you need to schedule maintenance or a tune-up of your HVAC system, then call us at AC Express today, serving homes in Winston Salem, Clemmons, Lewisville, Advance, and surrounding communities in the Piedmont Triad.