Whether you worry about everyday dust and pollen or more serious pollutants like smog, mold, wildfire smoke, viruses, or bacteria, an air purifier is a worthwhile investment. Air purifiers operate based on a common principle: they draw air through one or more filters using a fan. However, manufacturers have found innovative ways to iterate on the concept, resulting in a fairly dense market that caters to a range of budgets and needs.
We've tested over 25 models to find the best air purifiers, and below are our recommendations. If you want to explore other options, check out our recommendations for the best air purifiers for dust and the best air purifiers for bedrooms.
Alternatively, if you're looking for a way to keep your floors clean, see our recommendations for the best HEPA vacuums. Also note that we've updated our vacuum tests to measure their impact on air quality.
We've independently tested over 25 air purifiers, purchasing each one ourselves like the average consumer would: no cherry-picked samples or talking points from manufacturers. Each unit goes through the same standardized test bench, and the results are validated by multiple teams before being published on our website, so you can accurately compare them side by side.
Check out our How We Test Air Purifiers article to learn more about our purchasing, testing, and writing procedures.
-
Best Air Purifier
The best air purifier for homes is the NuWave OxyPure. This premium model's main selling point is its multi-stage filtration system, which uses washable and reusable filters to cut down on recurring costs. This system comprises a stainless steel mesh pre-filter for larger debris, two 'Bio-Guard' filters (for mold, viruses, and bacteria), an ozone filter, and a HEPA/pellet-type activated carbon filter. Except for the HEPA/activated carbon filter, which requires yearly replacement, all parts are purported to have a 20-year lifespan, only needing a wash every couple of months. In terms of actual air purification performance, the NuWave is very good overall, with strong particle filtration across the board and an impressively high clean air delivery rate. It features built-in particle sensors, allowing it to monitor and adjust fan speed according to ambient air quality, eliminating the need to adjust settings during your workday.
This air purifier features Wi-Fi connectivity, enabling you to operate it remotely using the NuWave Connect companion app from anywhere. You can also use the app to check the quality of your home's air, set operating schedules, or change the device's settings. This air purifier operates pretty quietly at lower fan speeds, which is ideal for overnight operation, but it can get somewhat loud at higher fan speeds. If noise is a concern, consider the Dyson Purifier Big+Quiet Formaldehyde BP04, but be aware that it falls short of the NuWave in terms of clean air delivery rate.
-
Best Upper Mid-Range Air Purifier
If you have no need for the NuWave OxyPure's additional 'BioGuard' and Ozone filter, and require only a simpler three-stage system with more conventional disposable filters, the Levoit Core 600S is worthy of a mention. It offers a substantial clean air delivery rate, making it a viable option if you want a single unit for an entire studio apartment, or simply for large open-concept living and dining areas. As far as features go, it's Wi-Fi enabled, allowing you to view an estimate of air quality, change the fan speed setting, or be alerted whenever the filter needs to be replaced.
Downsides aren't too severe. This unit is fractionally louder than the pricier NuWave when the latter is set to its lowest fan speed, so it won't be quite as unobtrusive for overnight operation. Its overall footprint is thankfully smaller than the latter, though this is still a fairly tall unit.
-
Best Mid-Range Air Purifier
The Coway Airmega 200M is the best air purifier we've tested at a mid-range price point. Its three-stage filtration system is similar in composition to that of the Levoit Core 600S, though it does have a less powerful motor, making it less suited for larger rooms. However, it's still powerful enough to provide clean air for small- to medium-sized rooms. Unlike the pricier Levoit, you can't connect this device to a home Wi-Fi network, so there's no capacity for remote operation and live monitoring of your room's ambient air quality.
This unit is equipped with a particle ionizer. Particle ionizers cause smaller airborne particles to clump together and fall to the ground, where you can clean them up later. The problem is that they also produce ozone as a byproduct, which can irritate your lungs with prolonged exposure. That said, you can always turn off the ionizer.
-
Best Budget Air Purifier
If you want to spend as little as possible and only need something for a smaller room, the Levoit Core 200S is the best budget air purifier we've tested. This device is small enough to fit on a dresser or shelf, yet delivers relatively impressive overall filtration. It lags behind larger machines, such as the Coway Airmega 200M, with a considerably lower air-cleaning rate and poorer overall performance when sealing in the smallest airborne particles. However, it's still far from terrible in this regard, even if it's best suited for a bedroom or nursery.
While the 200S lacks an automatic fan speed adjustment setting, it's Wi-Fi enabled, allowing you to pair it with your smartphone via the VeSync companion app to operate the device remotely, set operating schedules, or receive filter replacement notifications.
-
A DIY Alternative
If you don't mind sacrificing convenience features, style, and quiet operation, consider building your own Corsi-Rosenthal Box. We used this guide to make our own with a set of 3M Filtrete air filters and a Lasko 20-inch box fan. This homemade machine isn't nearly as practical or feature-rich as our top pick, the NuWave OxyPure. It's ugly, bulky, and very noisy, so it's not the best option for spaces like living rooms or bedrooms. It also lacks niceties like particle sensors and Wi-Fi connectivity, though you could add the latter yourself using a Wi-Fi-controlled outlet. There's also no odor-absorbing carbon filter, although most air purifiers we've tested lack sufficient carbon to effectively deal with even moderate levels of volatile organic compounds.
That said, the Corsi-Rosenthal Box is the best air purifier we've tested in terms of actual performance. It handily outperforms every conventional air purifier with a very high clean air delivery rate. If you plan to set it up in an area where noise, size, and aesthetics aren't a concern, such as a workshop or garage, it's hard to do any better. It's also worth noting that some iterations of the Corsi-Rosenthal Box utilize multiple PC case fans instead of a single box fan, which is intended to help reduce operating noise. That said, we've yet to build a Corsi-Rosenthal Box in this manner, so we can't personally guarantee how it performs.
Notable Mentions
-
Dyson HEPA Big+Quiet Formaldehyde BP06:
The Dyson HEPA Big+Quiet Formaldehyde BP06 performs well, but not as well as the NuWave OxyPure. It lacks convenience and automation features compared to the NuWave, like incremental fan speed adjustment, resulting in a louder and less pleasant overall user experience.
See our review -
Mila Air 3:
The Mila Air 3 is an upper mid-range air purifier with a multitude of available filters. It runs quietly and has a relatively small footprint, but actual clean air delivery rate falls short of the Levoit Core 600S.
See our review -
Levoit Vital 200S:
The Levoit Vital 200S is a fantastic alternative to the Coway Airmega 200M if you don't need the ionizer system, and its wide air inlet prevents hair from clogging its intake, making it an excellent option for pet owners. That said, it lags slightly behind in terms of CADR.
See our review
Recent Updates
Feb 25, 2026:
We added the Levoit Core 600S as a new 'Best Upper Mid-Range Air Purifier' pick and replaced the Levoit Vital 200S with the Coway Airmega 200M as the 'Best Mid-Range Air Purifier' pick, since the Coway performs better overall. We added the Levoit Vital 200S and the Mila Air 3 to the Notable Mentions.
Nov 06, 2025:
We made slight in-text adjustments to further clarify product details.
Apr 30, 2025:
We've made minor edits for clarity and checked to ensure all our picks are in stock and still the best options.
Mar 26, 2025:
We mentioned a Wi-Fi-controlled outlet with the Corsi-Rosenthal Box and made some minor rewording throughout for clarity.
Feb 28, 2025:
We added the Dyson HEPA Big+Quiet Formaldehyde BP06 as a Notable Mention due to its high clean air delivery rate. We removed both the Conway Airmega 200M and the Conway Airmega AP-1512HH Mighty from the Notable Mentions since they don't perform as well as the Levoit models mentioned. We also adjusted the text for accuracy and clarity.
All Reviews
Our recommendations above are some of the best air purifiers for most people. We factor in the price, feedback from our visitors, and availability.
That said, there is no single best choice for homes that will suit everybody; your needs will depend on your budget, the size of your living space, your tolerance for operating noise, and whether you like having a device with convenience features like Wi-Fi connectivity. If you'd like to choose for yourself, here's the list of all our air purifier reviews.