Small Room 100-600 sq ft
Medium Room 600-1000 sq ft
Large Room 1000-2000 sq ft
As the seasons change, cooler temperatures lead to closed windows, increased HVAC use, and less fresh-air exchange, causing dust³, pet dander ⁴, pollen⁴, and smoke ¹ to continuously circulate indoors. PuroAir HEPA Air Purifiers help address this stagnant indoor air by continuously filtering airborne particles so you can enjoy cleaner-feeling air throughout the day.
PuroAir HEPA Air Purifiers are designed to continuously filter the air in your home, helping capture airborne particles so you can enjoy cleaner-feeling indoor air throughout the day.
But, Why Does Indoor Air Feel More Stagnant This Time of Year?
During warmer months, opening windows and spending time outside naturally exchanges indoor and outdoor air, but as the weather cools, closed windows, increased HVAC use, and more time spent indoors by family and pets keep everyday dust³, odors¹, and particles circulating repeatedly. While this doesn't necessarily make indoor air unhealthy, airborne particles remain inside and continue to circulate until removed or settled.
What Can Build Up in Indoor Air?
Your home contains more airborne particles than you might realize. Some come from outside, while others are generated indoors through everyday activities.
Common airborne particles can include:
- Dust³ from everyday household activities
- Pet dander⁴ from dogs, cats, and other pets
- Pollen⁴ that enters through doors, windows, clothing, and shoes
- Smoke¹ particles from cooking, candles, fireplaces, and outdoor wildfire smoke ¹
- Fine particles generated by everyday household activities
- Mold⁴ that can become airborne
- Other airborne contaminants ³ that circulate through your living space
The longer you're indoors, the more time you spend breathing the same air throughout your home. According to the U.S. Environmental Protection Agency (EPA), the average American spends approximately 90% of their time indoors.
That's one reason continuous air filtration can be especially useful during seasons when homes tend to stay closed up.
How Heating and HVAC Systems Affect Indoor Air
While your heating and cooling system plays an important role in maintaining home comfort, HVAC systems primarily move air rather than remove every airborne particle, allowing some particles to continue circulating based on your system's filtration and ventilation, which is where portable air purification can provide an extra layer of filtration.
A HEPA air purifier is designed specifically to filter airborne particles as air passes through the unit. Rather than relying solely on your HVAC system, a portable purifier can continuously filter the air in the room where you spend the most time.
Bonus Tip: PuroAir also offers the Mega HVAC Filter, which combines powerful MERV 13 filtration with CarbonTechTM activated carbon for the one-two punch on airborne particles, as well as odors¹, smoke¹ and VOCs⁵. That’s right - the Mega Filter will allow your HVAC system to filter the air while the system is running!
How PuroAir HEPA Air Purifiers Can Help
PuroAir HEPA Air Purifiers are designed to keep air moving through three layers of filtration. These best-selling air purifiers combine HEPA filtration with activated carbon filtration to help reduce airborne particles and address household odors¹.
HEPA Filtration
PuroAir HEPA Air Purifiers can help reduce common household particles such as dust³, pollen ⁴, pet dander⁴, smoke¹ particles, mold⁴ particles, and other airborne particles. Because the purifier continuously circulates air through the filter, it can help reduce the amount of airborne particulate matter circulating throughout the room.
Activated Carbon for Household Odors¹
Particles aren't the only thing that can linger indoors. When windows are closed and you're spending more time inside, household odors¹ from pets, cooking, smoke¹, and other everyday activities can become more noticeable. PuroAir models equipped with activated carbon filtration use carbon to help filter certain odor¹-causing compounds and gases as air passes through the filter.
HEPA filtration and activated carbon work together to address different types of indoor air contaminants ³.
Keep the Air Moving
One of the simplest ways to improve your indoor environment is to keep air moving and filtered, which is where PuroAir fits into your everyday routine. Instead of waiting for dust ³ or other particles to settle on surfaces, a PuroAir HEPA Air Purifier continuously draws air through its filtration system while you go about your day.
Place your purifier in the room where you spend the most time, such as:
Bedroom
Bedrooms can be one of the most-used rooms in your home. A PuroAir air purifier can continuously filter airborne particles while you sleep.
Living Room
Living rooms often have the highest amount of activity in the home, especially when everyone is spending more time indoors. Choose a purifier sized appropriately for the space to help continuously filter the air, like the PuroAir 240 or PuroAir 400.
Home Office
Working from home can mean spending hours in the same room. A PuroAir air purifier can provide continuous filtration throughout the workday. We offer smaller air cleaners that are perfect for home offices, like the PuroAir 100i and PuroAir 130i.
Pet Areas
Pets are wonderful companions, but they can significantly contribute to indoor air pollution by shedding dander⁴, hair, and tracking in outdoor allergens⁴. These particles tend to settle in areas where pets spend the most time, such as around pet beds, feeding stations, or litter boxes.
Placing a PuroAir HEPA air purifier in or near these designated pet zones helps continuously capture airborne dander⁴ and fine particles before they spread throughout your home. All PuroAir air purifiers are equipped with activated carbon filtration and are particularly effective near litter boxes or pet bedding, as they work to filter stubborn odors¹ alongside filtering airborne debris, keeping your living space smelling fresh and clean.
Which PuroAir Air Purifier Is Right for Your Home?
| Feature | PuroAir 100i | PuroAir 130i | PuroAir 240 | PuroAir 400 |
|---|---|---|---|---|
| Coverage | 550 sq. ft.1 | 750 sq. ft.1 | 1,000 sq. ft.1 | 2,000 sq. ft.1 |
| HEPA Filtration | ✓ | ✓ | ✓ | ✓ |
| Activated Carbon | ✓ | ✓ | ✓ | ✓ |
| Air Quality Sensor | — | — | ✓ | ✓ |
| Auto Mode | ✓ | ✓ | ✓ | ✓ |
| Smart / App Enabled | ✓ | ✓ | — | — |
| Sleep Mode | ✓ | ✓ | ✓ | ✓ |
| Best For | Dorms, bedrooms, apartments, and home offices | Bedrooms, home offices, kitchens, and medium-sized spaces | Living rooms, larger bedrooms, dining rooms, and busy homes | Large rooms, open-concept homes, and expansive spaces |
For smaller spaces, the PuroAir 100i and 130i offer smart controls directly from your phone or tablet.
For larger living spaces, the PuroAir 240 and 400 provide greater coverage, automatic air quality adjustments and powerful air circulation.
Simple Ways to Improve Indoor Air This Season
An air purifier is one part of maintaining a comfortable indoor environment. You can also make a few simple changes around your home:
- Change your HVAC filter regularly. A clean HVAC filter helps your heating and cooling system operate as designed. We recommend checking your air filter every 30 days.
- Keep your home clean. Regularly dust ³ and vacuum floors, furniture, and other surfaces where particles can accumulate.
- House burping when appropriate. When outdoor conditions and temperatures allow, opening windows or using appropriate ventilation can help bring fresh outdoor air inside. This is also known as “burping” your home. House burping means opening the windows for just 5 to 10 minutes a day. It's a quick, easy reset that flushes out stale indoor air and introduces your space with fresh outdoor air.
- Control household sources. Use kitchen ventilation when cooking and avoid unnecessary indoor sources of smoke ¹ and airborne particles.
- Run your air purifier consistently. Rather than only turning on an air purifier when the air feels dusty ³, consider running it 24/7 so it can continuously filter the air.
- Replace your purifier filter as recommended. A clean replacement filter helps your PuroAir air purifier continue filtering as designed. We recommend changing the filter every 90 days, or 3 months. All wi-fi enabled PuroAir air purifiers can connect to the PuroAir mobile app, which displays the air filter life and allows you to order fresh filters directly from your phone.
Don't Let Stale Indoor Air Become Part of Your Seasonal Routine
As the seasons change, your home becomes a place where you spend even more of your time. With windows closed, HVAC systems running, and everyday activities continuing to introduce particles into the air, indoor air can feel more stagnant than it does during warmer months. A PuroAir HEPA Air Purifier provides an easy way to add continuous air filtration to your home.
Keep your air moving. Keep your air filtered. And make cleaner-feeling indoor air part of your everyday routine.
Shop PuroAir HEPA Air Purifiers
From compact smart air purifiers for bedrooms and offices to powerful models designed for large living spaces, there's a PuroAir air purifier for every room in your home.
Find the right PuroAir for your space and start filtering your indoor air today.
