1. Your air ducts
It is possible that your duct system is pulling in dust from your attic, and other areas, and distributing it throughout your home.
According to ENERGY STAR, the typical home loses about 20-30% of the air flowing through the forced-air system’s ductwork. This loss is mainly because of holes or gaps around fittings or joints. These holes and gaps allow dust into the system which then blows into your conditioned areas.
An easy way to test this in your home is to look at the vent covers. If it looks dusty, your ducts may be the problem.
Sealing your air duct system will lower your bill and reduce the amount of dust in your home.
2. Your HVAC filters
You should be changing your filters every 2-4 months. If dust in your home is a significant issue then changing the filters can only help. If it seems like your filters never get dirty, or you only change them once in a blue moon, chances are they’re not catching the dust in your air and if the filters are filthy, air won’t pass through, and dust will simply bounce off and settle somewhere else in the house.
For the best results: invest in quality filters, change your filters regularly, stay on top of routine maintenance, and make sure you’re not skimping on filters.
3. Outside air
If you live in a hot and dry area like Phoenix, you’re probably getting a good amount of dust and dirty air coming in from the outside of your home. This is a common problem in dustbowl and desert and sandy beach areas.
A good way of taking on the dust from the outdoors is investing in an air purifier. Another tactic of taking on the dust from outside is finding a good balance of humidity and dryness in your home’s air. Dry air can mean more dust and often times dust is a sign of dry air.
Having an energy audit done on your home can be a great way to identify why there is so much dust in your home. You can find a competent technician that will give you a comprehensive review of your home at Green ID.