If you’re seeing dust in areas of your home that you’ve just vacuumed, there’s a chance that your HVAC system is part of the problem. In this blog, heating and air conditioning contractor Air Quality discusses what should be done in the event your HVAC system is allowing dust to spread throughout your home.
What Causes All the Dust?
Under normal operating conditions, air passes through an air filter, which traps dust and various other particles found in the air. Filtered air is then conditioned (heated or cooled, depending on which system is currently in use) before being distributed throughout the house via the air ducts. Between distribution and recirculation, dust can be introduced through open doors and windows, as well as other sources such as clothes, dead skin cells and pet dander.
There are two points of origin that could be allowing dust to recirculate in your house. The first is the air filter. The reason why air filters need to be replaced every three months or so (or as often as once a month during seasons of heavy use) is because they eventually get clogged with dust and other particles. Faiulre to replace them creates a barrier that enables the dust to go elsewhere.
The second point of origin is the ductwork itself. If not trapped in the air filters, dust recirculates in the ductwork, either collecting in crevices and other spots or getting released into the living areas. Leaks in the ductwork allow dust to spread in areas that aren’t as noticeable.
How to Prevent Dust from Spreading
Keeping up with regular HVAC maintenance is one of the best ways to prevent dust from spreading and recirculating inside the house. Inspect the air filters regularly, and clean or replace them when they become clogged. If you find yourself having to replace them more often than recommended, you may need to upgrade to a more efficient type of filter, such as HEPA or electrostatic air filters. The air ducts also need to be cleaned every three to five years. Sealant is usually applied after duct cleaning, either in the form of a spray or an aerosol.
You should also try to address other sources of dust. You can do this by keeping your pets clean to reduce the amount of dander, making sure to keep doors closed and using screens when opening the windows. You or your landscaper should also address any bare patches of soil in the yard.
Call Air Quality for All Your HVAC Needs
Air Quality Heating & Air Conditioning is your leading provider of furnace repair, maintenance and installation services. Give us a call at (408) 899-8878 or fill out our contact form. We serve customers in San Jose and surrounding areas.