You dust the coffee table, wipe down the shelves, and feel like you’ve finally gotten ahead of it. Then, a couple of days later, that familiar thin layer of dust is already starting to settle again.
And once the cooler weather rolls around, it can seem like you’re noticing it everywhere. That afternoon sunlight certainly doesn’t help when it makes every little particle floating through the room impossible to ignore.
So, where is all that dust coming from?
Before you blame your cleaning routine, there’s more going on inside your home than you might realize. The fall and winter months change a lot of our habits around the home. Windows stay closed more often, the HVAC system runs regularly, and the pollen, pet dander, dust, and other particles that make their way inside have more opportunities to stick around.
It’s something we hear about from homeowners at Vital Air Services when the seasons change. And while your HVAC system isn’t creating all that dust, it does have a role in how much of it keeps circulating through your home.
That’s where your HVAC filter comes in. It has the important job of catching airborne particles before they get another chance to make their way around the house.
Your house can get dustier in fall and winter because closed windows, more time spent indoors, and regular HVAC use allow dust and other airborne particles to build up and recirculate. Pet dander, pollen, and other particles can also get trapped indoors. A clean, properly selected HVAC filter helps capture some of these particles as air moves through your system.
Once Atlanta finally gets a break from summer heat, opening the windows for a little fresh air can feel pretty great.
Then cooler weather arrives and those windows stay shut more often.
You’d think that would mean less outdoor dust and pollen getting inside. Unfortunately, your house isn’t quite that airtight.
Outdoor particles can still make their way indoors on shoes, jackets, pets, bags, and through small gaps around the home. The EPA notes that outdoor particulate matter can enter through doors, windows, cracks, and crevices.
Once it’s inside, it’s added to the mix of all the other stuff your household is already creating, including:
In other words, closing the windows doesn’t put your home into a dust-proof bubble.
Your HVAC system doesn’t create all the dust in your house, but it does move a lot of air.
Every time a forced-air heating or cooling system runs, indoor air is pulled toward the system, passes through the filter, and gets sent back into your living spaces.
If that filter is dirty, overdue for replacement, poorly fitted, or simply isn’t very efficient at capturing smaller particles, more of that stuff can remain in circulation.
And during the months when you’re spending more time indoors, you’re probably going to notice it.
Not all HVAC filters capture the same particles.
That’s where MERV ratings can make all the difference. MERV stands for Minimum Efficiency Reporting Value, and it gives you a way to compare how effectively filters capture different particle sizes.
Generally, a higher MERV rating means better particle capture.
EPA recommends using a MERV 13 filter, or the highest rating your HVAC system can comfortably handle, if you want to improve particle filtration.
That doesn’t necessarily mean you should grab the highest-rated filter you can find, though. As filters become more efficient at capturing smaller particles, they can also make it harder for air to pass through. Your HVAC system still needs the right amount of airflow to work properly, which is why the best filter is one that gives you better filtration without asking more of your system than it was designed to handle.
If you’re thinking about upgrading and aren’t sure what your equipment can accommodate, check the manufacturer’s recommendations or ask an HVAC professional.
Start with the simple stuff:
And if dust seems excessive no matter how often you’re cleaning or changing the filter, it may be worth looking beyond the filter itself. Air leaks, ductwork issues, moisture problems, or other indoor air quality concerns could also be contributing.
Your HVAC filter has an important job, but it doesn’t have to do all the work on its own.
For homeowners who want to take indoor air quality a step further, a whole-home air purifier or air-cleaning system may be worth considering. These systems work alongside your HVAC equipment to help capture or reduce certain airborne particles and irritants as air moves through the home.
That can be especially appealing during fall and winter, when you’re spending more time indoors with the windows closed and dealing with everything from seasonal allergens to pet dander.
There isn’t one air-cleaning setup that’s right for every house, though. The best option depends on what you’re trying to remove from the air, your existing HVAC equipment, and the indoor air quality concerns you’re actually dealing with.
If you’re tired of wondering what’s floating around your home, Vital Air Services can help you look at your current setup and determine whether better filtration, an air purifier, or another indoor air quality solution makes sense.
Your house can get dusty again quickly because new particles are constantly entering the home or being created inside it. Pet dander, clothing and furniture fibers, cooking, outdoor dirt and pollen, and everyday activity can all add to household dust. Regular cleaning helps, but it can’t completely stop new dust from settling.
Dust around your air vents can come from particles circulating through your HVAC system or from dust that has settled on the registers themselves. A dirty or poorly fitted HVAC filter may also allow more particles to stay in circulation. If you’re noticing an unusual amount of dust around multiple vents, it may be worth having your HVAC system checked.
An air purifier can help reduce airborne dust and other particles, but it won’t eliminate household dust completely. Its effectiveness depends on the type of air cleaner, the particles you’re trying to capture, and whether the system is properly sized and maintained. You’ll still need regular dusting and vacuuming for particles that have already settled.
There isn’t one filter-change schedule that works for every home. How often your filter needs to be replaced depends on the filter itself, how often your HVAC system runs, whether you have pets, and how quickly the filter becomes dirty. Check it regularly and follow the filter and HVAC equipment manufacturer’s replacement recommendations.
You probably can’t stop dust from finding its way into your house completely. If someone figures that out, we’d like to know too!
But you can make it harder for all those particles to keep making laps around your home.
Keeping up with filter changes, choosing filtration that’s appropriate for your HVAC system, and taking a few simple steps around the house can make a noticeable difference.
And if you’re not sure whether your current filter is doing enough, or your home seems unusually dusty no matter what you do, schedule an HVAC inspection online with Vital Air Services.
We can take a look at what’s happening with your system and help you figure out what makes sense for your home.
