6 best air purifiers for 2026: Tested and reviewed for smoke, allergies and pet odor

Wildfire season isn't just a West Coast problem. Smoke can travel hundreds of miles, turning the sky hazy and seeping into homes that are nowhere near the actual fire. That's where the best air purifier comes in. A good model senses that spike in smoke particles, kicks into high gear and works quickly to clear the air — so you're not stuck breathing it in even indoors. But wildfire smoke is just one of the reasons to rely on an air purifier. They can also help keep allergies in check, clear out smoke from cooking mishaps, tackle lingering pet odors and cut down on dust around your home. Some models may even help reduce virus-containing airborne particles.

Put simply, air purifiers make it easier to breathe clean air at home — as long as you choose the right one (and keep it maintained). That's where things can get tricky. I'm not going to lie — shopping for an air purifier can feel overwhelming, thanks to all the acronyms and technical jargon thrown your way. (Ever heard of CADR or clean air delivery rate ? I hadn't.) To cut through the noise, I spoke with two air purifier experts to better understand what actually matters when you're choosing one. I also consulted an allergist about the benefits — and potential drawbacks — of using an air purifier at home.

Then we put that guidance into practice, narrowing the field to 13 air purifiers that Yahoo editors tested in their own homes for at least two weeks (and some for several months). We then evaluated each model for setup, ease of use, performance, noise and maintenance — and six stood out as the best of the best (with a few close contenders). Keep reading to find the right one for your home.

Best overall air purifier

Right off the bat, the Levoit Core 400S air purifier made quick work of indoor smoke. "I was shocked at how well it handled cooking smoke," said Yahoo Content Operations Manager Amanda Rickert , who noted it quickly cleared candle smoke too. "Within 10 minutes, the PM2.5 was back to 1, and all the smoke and smell were gone — which was awesome."

It also made a noticeable difference in everyday air quality, thanks to its three-stage filtration system (pre-filter, H13 True HEPA and activated carbon) that captured dust, allergens and odors. "There was definitely less cat hair about, which was nice for cleaning," Rickert said. And when she placed it near the litter box, odors didn't stick around as long. "Dust accumulation was definitely reduced, and smells didn't linger as long as they did before," she added.

Rickert found that the Levoit was especially good at responding to sudden changes in air quality. The smart sensor and auto mode automatically increased the fan speed when needed. "The accuracy of the air quality sensor felt great," Rickert said, adding, "it handled spikes with a quick kick up into high fan mode and returned the room to normal fast." The only caveat: It was more responsive to larger, room-wide air quality changes — like cooking smoke — and was slower to react to smaller, localized pollutants, such as a candle blown out across the room.

Beyond its strong performance, the Core 400S has several features that make it easy to live with. Its night mode was "whisper quiet" and free of distracting lights. It was lightweight and easy to move around, which Rickert found especially helpful when cooking. It's also Energy Star-certified for efficient 24/7 use and has a sleek design with intuitive touchscreen controls.

The companion app added functionality, including real-time air quality readings, scheduling and filter-life tracking. "This might be the easiest device I've ever connected," Rickert said.

Bottom line:The Core 400S performed exceptionally well with larger air quality changes, has an effective night mode and is intuitive to use — making it a reliable option for most homes at a solid midrange price.

More air purifiers we like for 2026

If you're looking for an air purifier for a medium-sized room under $200, the Clorox True HEPA Air Purifier is a strong contender. (Yes, Clorox, the very same brand known for cleaning sprays and wipes.) Like pricier models, this one features a three-stage filtration system, including a True HEPA filter and activated carbon.

I live in a 1,700-square-foot open-concept condo, and I placed the air purifier near my kitchen. I was impressed by how quickly the unit kicked into high gear when chicken started smoking on the stove. Just as impressive was how well it handled dust and pet hair.

I occasionally dog-sit a husky-golden mix, and when I do, my house usually ends up covered in hair. But the last time I had the pup, I ran this unit 24/7, and while I still had to vacuum, there was noticeably less hair than usual. I've also had to dust less often — no small feat in Colorado, where dust seems to reappear minutes after cleaning.

In terms of overall performance, the Clorox True HEPA did a solid job tackling everyday pollutants and more concentrated issues like cooking smoke. That said, cooking odors took a few hours to fully dissipate and the machine struggled more with heavy, lingering odors. For example, during a period of intense wildfire smoke, my main floor still had a faint campfire smell, but my upstairs, where I ran a different air purifier (Medify MA-112; see my review below), was completely odorless.

While there isn't a companion app, the touchscreen was easy to use. I simply set it on auto mode, so I didn't feel like I was missing much without an app. But if you prefer adjusting your purifier remotely or want detailed air quality data, this could be a downside. Still, given the price — under $200 compared to $500+ models that handled odors more efficiently — it's a reasonable tradeoff.

Bottom line:The Clorox Medium Room True HEPA Air Purifier is a simple, no-fuss option that punches above its price — especially for pet owners and anyone looking to cut down on dust, hair and everyday smoke.

When allergies, asthma or dust sensitivity keep you up at night, an air purifier in the bedroom can help, but many models are too loud or bright for sleep . The Levoit Vital 200S-P Smart Air Purifier solves for both, thanks to its sleep mode that lowers fan noise and turns off the display lights for a more bedroom-friendly setup.

Yahoo Evergreen Commerce Director Lauren Matthews-Ide said she and her husband quickly adjusted to the soft white-noise hum and were "pleasantly surprised by how quiet it was." She did note, however, that it took a little getting used to, and the sound was more noticeable when it ramped up to high speed. The Vital 200S also has a sleek design that Matthews-Ide didn't mind displaying in her room. And the app meant she didn't have to get out of bed to make adjustments or monitor air quality.

The best part: "The morning eye irritation I used to wake up with completely disappeared," Matthews-Ide said, adding that she and her husband both sneezed less too.

The purifier uses a three-stage filtration system (pre-filter, HEPA and activated carbon) to capture dust, allergens and odors. According to Matthews-Ide, that combo kept the air — and the unit itself — notably clean over time. In a roughly 400-square-foot bedroom, the purifier had no trouble keeping up, consistently maintaining clean air without requiring manual adjustments. Its auto mode and air quality sensor "responded appropriately to changes without overreacting or lagging, and I never needed to adjust it," Matthews-Ide said.

She was equally impressed by the candle smoke test. "It cleared out the smoke and smell pretty quickly — in under 10 minutes."

Energy efficiency was another win: after running it 24/7 for two months, Matthews-Ide didn't notice any meaningful increase in energy costs. Maintenance was also low-lift, thanks to the washable pre-filter and simple, tool-free filter replacements.

Bottom line:The Levoit Vital 200S is a sleek, quiet and low-maintenance air purifier that excels in bedroom settings, offering strong everyday performance without disrupting your sleep.

The Medify Air MA-112 was one of the most powerful options we tested, especially for cleaning the air in large, open spaces — even an entire floor of a home. When I moved into my condo, it smelled like a dog kennel, and typical fixes like shampooing the carpets barely made a dent. Within a week of running the MA-112, the smell was gone entirely.

Its abilities shone again when heavy wildfire smoke hit where I live. The air remained so fresh that I didn't even realize there was an air quality issue until I went downstairs and truly noticed the difference. It's also done an excellent job keeping dust and allergens down — even during peak sneeze season, my symptoms haven't been as severe, especially at night.

The MA-112 features a high-capacity, multi-stage filtration system and powerful airflow, enabling it to cover large areas effectively. That said, this power comes with some not-so-small trade-offs. It uses more energy than smaller purifiers, and the filter, which needs to be changed every few months, costs $139. It's also big and bulky, but its built-in wheels and dual handles make it easier to move than you might expect.

Bottom line:The Medify Air MA-112 is a powerhouse air purifier built for large spaces, delivering impressive whole-home results — especially for dust, pet odor and smoke. Just be prepared for some higher ongoing costs.

Air purifiers don't work without filters — and keeping them running well usually means replacing those filters every six to 12 months, which can be both annoying and expensive. The main filter in the Shark NeverChange Air Purifier MAX , however, is designed to last for up to 5 years. The side filters are washable too, which helps reduce ongoing maintenance. A built-in pre-filter captures larger particles, helping protect the main HEPA filter and maintain performance over time.

But low maintenance only matters if the purifier performs. To evaluate how well the Shark handled intense odors, Yahoo Senior Writer Katie Teague lit a heavily fragranced candle as a stress test. "The candle's strong scent usually takes over the room, but I couldn't smell it at all while the air purifier was on," she said.

That said, while the purifier reduced everyday odors and even released a subtle fresh scent while running, the smoked meat smell in her home stuck around for many hours. The machine is bulky but relatively quiet, even on higher settings, and includes dimmable lights and a sleep-friendly mode.

Bottom line:The Shark NeverChange Air Purifier MAX is a strong choice if you want a low-maintenance air purifier that helps keep everyday odors in check without frequent filter replacements.

It's not just pollen that can trigger allergy symptoms — dust, smoke and other particles in the air can make reactions worse, says Dr. Stephanie Kayode , an allergist at Allergy Care London. In testing, the Coway Airmega 450 , with its multi-stage filtration system (pre-filter, True HEPA and activated carbon), made a noticeable difference in air quality — and, for our tester, allergy symptoms.

"My allergy symptoms improved, and I noticed less dust accumulation in the room," said Yahoo Audience Manager Alyssa Stringer . Part of the reason: The purifier detected changes in the air almost immediately and adjusted in real time, though it took closer to an hour for the air to feel noticeably better.

In her open-concept apartment, the purifier maintained consistent coverage across the entire space. It also picked up on changes happening far from the unit itself, she said, noting that it "sensed smoke coming from my bedroom, even though it was on the opposite side of the apartment."

The purifier was also easy to use. The onboard display showed real-time air quality with color-coded indicators that shift as conditions change. As for trade-offs, the unit is large and bulky, best suited for bigger rooms with plenty of space. It's also not the quietest option on higher settings and replacement filters are on the pricier side ($109).

Bottom line:The Coway Airmega 450 is a fast, highly responsive air purifier that excels at reducing allergens and maintaining clean air in larger spaces.

Types of air purifiers and filters

• HEPA:Short for high-efficiency particulate air, HEPA filters are designed to capture very small airborne particles. "To be classified as 'HEPA,' a filter must meet strict standards — removing at least 99.97% of particles as small as 0.3 microns," explains Rick Hoskins , CEO and HVAC, air quality and filter expert at FilterKing . That level of filtration helps remove dust, allergens and other contaminants from the air — and can even capture some types of bacteria.

• HEPA-type: Terms like HEPA-type, HEPA-like or HEPA-style "don't meet the same filtration standards as HEPA filters," warns Hoskins. "While they look like HEPA filters because they're pleated, they often fail to remove finer dust from the air." True HEPA filters won't use this language.

• Activated carbon:Instead of trapping particles, activated carbon filters absorb gases and odors. "They can remove volatile organic compounds (VOCs) and smoke odors too, which can greatly improve indoor air quality," says Hoskins, who notes that this can be especially useful in areas prone to wildfire smoke. Glenn Gault , CEO at Gault Heating & Cooling, recommends choosing a purifier that includes both a HEPA and an activated carbon filter.

• UV-C:These air purifiers "use a short band of ultraviolet light to damage the DNA and RNA of viruses and bacteria," which may help reduce microorganisms in the air, Hoskins says. That said, they may be most effective when used alongside a HEPA filter, which captures dust, allergens and other particles. Of note, the Environmental Protection Agency warns that some UV air purifiers emit ozone, which isn't good for lung health.

• Ionic (ionizers):These release charged particles that bind to airborne pollutants, causing them to fall out of the air or stick to nearby surfaces. While they tend to be low maintenance and quiet, they can produce ozone, which may irritate the lungs. For this reason, Kayode does not recommend using ionic air purifiers — especially for households with young children, older adults or anyone with asthma or other respiratory conditions.

Factors to consider when buying an air purifier

• Filter type:For most homes, that means a purifier with both a HEPA and an activated carbon filter. "Since there's likely no home where people never cook, clean with chemicals, use air fresheners or light candles, most households would benefit from choosing a model with a carbon filter in addition to a HEPA one," says Gault.

• Room size:Choose a purifier rated for at least the size of your room. If it's too small, it won't keep up — especially in open spaces or areas with smoke, pets or heavy dust.

• Clean air delivery rate (CADR):This measures how quickly a purifier can clean the air. Higher numbers mean faster, more effective filtration. A good rule of thumb from the Association of Home Appliance Manufacturers (AHAM) : Look for a CADR that's at least two-thirds of your room's square footage (for a 400-square-foot room, that's about 267 CFM).

• Design:"The design of an air purifier is not just about how it looks; it directly affects efficiency," Gault says. Units with 360-degree intake or strong airflow clean more effectively than those that pull air from just one side.

• Noise:Some purifiers are noticeably louder than others — even on low. That may not matter in a living room, but it can make a big difference in a bedroom

• Energy consumption:If you plan to run your purifier around the clock, efficiency matters. Look for models with Energy Star certification to help keep electricity costs in check.

• Auto mode:"Purifiers with auto mode adjust fan speed based on air quality," Gault says. "While they're more costly, they're worth it in the end because they use less energy, saving you on electricity bills."

• Ease of cleaning:A purifier won't work well if it's dirty. Look for models that make filters easy to remove and clean — or replace.

• Filter replacement:Don't forget to factor in ongoing costs. Filters need to be replaced regularly, and prices vary. Hoskins suggests setting up auto-delivery so you don't forget.

• Warranty:While not a make-or-break item, a multi-year or lifetime warranty can provide peace of mind, especially for higher-priced models.

• Cost:As our testing showed, you don't have to spend a fortune to get a good air purifier. But for large spaces or heavy pollution (like wildfire smoke), investing in a more powerful unit may be worth it.

Get the most out of your air purifier

To keep your air purifier working effectively, we asked Hoskins and Gault to share their top tips:

Know where to place your air purifier for best performance

For optimal effectiveness, air purifiers need room to do their thing. "Don't crowd your purifier into a corner or underneath furniture. Put it out in the open where it can capture the largest amount of airborne particles," says Hoskins.

Gault agrees, adding, "Such a little thing as placing it closer than 12 inches from the wall can reduce its efficiency by 30%."

How to clean your air purifier

"An air purifier can't clean the air if filters, pre-filters and intake and outlet vents are dirty," says Gault. For the pre-filter and vents, he recommends using a vacuum to remove dust without pushing it deeper inside, like you might accidentally do with a cloth or cleaning brush.

Learn when to replace your filter

Most filters can't be washed and need to be replaced regularly based on the manufacturer's recommendations — or when they've become dirty enough that you can't easily shine a light through them, says Hoskins.

Another clue it's time to change your filter: the unit starts working harder than usual. "It will sound like it's struggling to filter air," Hoskins adds.

If your purifier has air quality sensors, Gault recommends cleaning them every month or two with a soft microfiber cloth — otherwise the readings may not be accurate.

How we chose the best air purifiers

After extensive research, we narrowed our testing pool to 13 air purifiers, spanning a range of price points, room sizes and use cases (including models designed for pet owners). Our panel tested each unit in their homes to evaluate real-world performance — from clearing cooking smoke and litter box odors to reducing dust and allergy symptoms.

Each purifier was also put through the same controlled candle test to assess how quickly it responded to and cleared smoke and lingering odors. We also evaluated everyday usability, including ease of setup, usability, portability and overall design.

All units were tested for at least two weeks, though most were evaluated for a month or longer. Testers rated each purifier across four key categories:

• Performance and effectiveness:How well did the unit reduce pet hair and dander, allergens and smoke? Did the auto mode respond quickly, or was there a noticeable lag?

• Ease of use and daily experience:How easy was it to set up and operate? If there's an app, was it actually useful? How loud is the unit, and can lights be dimmed or turned off at night? Did it impact your energy bill?

• Maintenance and long-term care:How easy is the unit to clean? How often do filters need to be replaced, and how expensive are they? Do you need special tools for maintenance?

• Overall value:Who is this purifier best suited for? What are its biggest strengths and weaknesses? Does the price feel justified based on performance?

Other air purifiers we tested

• Alen Breathesmart 75i ($799):After a month of testing, there was a lot we liked about this large-room purifier. It delivered strong performance overall, clearing odors quickly while remaining impressively quiet. However, it wasn't as effective at tackling pet dander, and replacement filters aren't cheap. Ultimately, while it performed well, our tester noted, "There are probably other devices that do 90% of the job at a lower price point."

• Blueair Pure 211i Max ($350):Described as "one of the best-looking purifiers I've seen" — "the kind you'd find in a Danish or Swedish home" — the Pure 211i Max delivers a strong overall user experience. The display was easy to read, the app was intuitive and auto mode responded quickly to changes in air quality. It handled odors well, though our tester didn't notice a significant reduction in dust, and replacement filters are on the pricier side.

• Blueair Pure 311+ Max ($255):Our tester, who also tried the Blueair Pure 211i Max, said the 311+ felt like a smaller version of the 211i. While it's marketed for sensitive groups, she didn't notice any meaningful difference in performance, noting that the two models seemed to operate similarly.

• Coway Airmega AP-1512HH  ($240): This large-room purifier uses a three-stage filtration system and performed well in testing, reacting quickly to impurities, reducing pet odors and making a small but noticeable dent in allergy symptoms. That said, despite being marketed as compact, it was bulkier than expected and its "space-y" design can be hard to place. On high, our tester noted, it's also "pretty dang loud."

• Levoit Core 300S ($150):A solid option for small rooms, this budget-friendly purifier was aesthetically pleasing and effective at cleaning the air. Our tester noted fewer cat hairs in her space. However, it wasn't as effective in low mode or at longer distances compared to others on our list.

• Oransi Mod+ ($850):Overall, our tester was impressed, noting that it "felt like a very solid, well-built unit that should last for years with proper care." Filters only need to be replaced once a year, and auto mode quickly and effectively neutralizes cooking odors — even after a stinky ramen mishap. The biggest downside? The price, especially since other models on our list delivered similar performance at a lower cost.

• Blueair Blue Pure 511 ($100):Designed for small rooms (up to 413 sq ft), this compact, budget-friendly purifier stands out for its simple controls and small footprint — a good fit for a nursery or bedroom. The main drawback: Our tester said the air quality indicator never changed over three weeks of use, even during a candle-smoke test, raising concerns about the sensor's responsiveness.

FAQs

Does an air purifier help with wildfire smoke?

Yes — especially if it uses a True HEPA filter, which captures fine particles like PM2.5, the main pollutant in wildfire smoke. In real-world use, HEPA purifiers can reduce indoor PM2.5 levels by roughly 50% to 80% .

For best results, look for a model with an activated carbon filter as well, which helps reduce smoke odors and gases.

Who needs an air purifier?

Gault, who has decades of experience in HVAC and indoor air quality, says air purifiers are a must for people with allergies, asthma or pets. "It's not just the factory near your house, traffic pollution or pollen season that can worsen your indoor air; it's also the things you use on a daily basis and never expect to release pollutants or harmful gases," he says, listing household cleaners , candles and, yes, even air fresheners as examples.

What is the best air purifier for pets?

In our testing, the Levoit Core 400S Smart Air Purifier — our best overall pick — also stood out as one of the most effective for pet-related issues, including odor, dander and hair. Our tester, who has cats, noticed less loose fur around her home, and when the purifier ran near the litter box, smells didn't linger as long.

For a more budget-friendly option, the Clorox Large Room Air Purifier also performed well, helping reduce pet hair and clear everyday pet odors in our tester's living space.

If you're dealing with a larger home or tougher, lingering smells, the Medify Air MA-112 Air Purifier is a strong choice. After about a week of continuous use, our tester said it eliminated a lingering "dog kennel" smell left behind by a previous tenant.

How often should air purifier filters be changed?

How often you need to replace your air purifier filter depends on the type of filter, how often you use it and your home environment. Some need to be changed as often as every one to three months, while others can last six to 12 months or longer.

"Most air purifiers have a sensor that can help you determine when the filter needs to be changed," says Hoskins. "However, it's not always accurate, so you should still inspect it regularly." Give your filter a quick check every few months. If it looks heavily coated in dust — or you can't easily shine a light through it — it's likely time for a replacement, Hoskins says.

What is the downside of air purifiers?

Aside from potentially increasing your monthly energy bill, air purifiers can backfire if you don't maintain them properly. A dirty or overdue filter can turn the unit into a source of dust and pollutants instead of removing them.

Kayode also cautions against ozone-producing air purifiers, especially in households with children, older adults and people with asthma. " Ozone-producing air purifiers can have adverse effects on health. When inhaled, it irritates and damages the lungs, eyes and throat," she says.

Can air purifiers help reduce the risk of airborne viruses?

Yes, though it depends on the type of air purifier. HEPA filters can capture virus-containing particles, such as respiratory droplets and aerosols, which can help reduce the amount of virus in the air . As Hoskins explains, "many viruses cling to water droplets and are larger than 0.3 microns."

Some purifiers also use UV-C light to help inactivate viruses and bacteria. These systems work best alongside HEPA filtration, since HEPA filters remove particles from the air while UV-C targets microorganisms.

Meet our experts

• Glenn Gault ,CEO of Gault Heating & Cooling

• Rick Hoskins ,CEO and HVAC, air quality and filter expert at FilterKing

• Stephanie Kayode ,MBChB, BSc, allergy consultant and physician at Allergy Care London

Update, July 16, 2025: We checked all product prices and availability. Our No. 1 pick for best overall home air purifier is unchanged.

Our health content is for informational purposes only and is not intended as professional medical advice. Consult a medical professional on questions about your health.