If you suffer from serious allergies or just want something that can help minimize the amount of allergens in your home, like pet dander or pollen from the outdoors, an air purifier is a worthy investment. The best air purifiers for allergies typically feature true HEPA filtration; an air purifier that meets that standard should be able to trap up to 99.97% of airborne particles as small as 0.3 microns. Common allergens like fine dust, pollen, and pet dander are typically this size or smaller, so most household units with HEPA-certified filters will be effective at trapping them. When shopping for an air purifier for allergies, look for models with a high enough clean air delivery rate (CADR) for the size of your space, since this measures how much air the device can purify in a given time. If you suffer from serious allergies, you'll likely run your air purifier almost constantly, so low operating noise across a wide range of fan speeds is another key consideration.
We've tested over 45 air purifiers, and below are our recommendations for the best air purifiers for allergies that you can buy. If you prioritize low operating noise and a small footprint above all else, you can also check out our recommendations for the best air purifiers for bedrooms. Or, if HEPA certification is important to you, see our recommendations for the best HEPA filter air purifiers. You can also see our picks for the best air purifiers for dust and the best air purifiers for pets.
Alternatively, if you're looking for a vacuum with HEPA-level filtration, you can check out our recommendations for the best HEPA vacuums and the best vacuums for allergies.
We buy and independently test air purifiers with no manufacturer samples, sponsorships, or pre-approved talking points. 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.
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Best Air Purifier For Allergies
Bedroom8.2Pets8.5Particle Filtration Rate8.6Filtration Layers5 StageActivated CarbonPelletsRecommended Room Size @ Max Fan Speed46.8 m² (504 ft²)See all our test resultsMeasured PM1.0 CADR548 m³/hr (323 CFM)The best air purifier for allergies we've tested is the NuWave OxyPure. This air purifier is a great fit for larger spaces and can operate effectively within spaces exceeding 500 ft² (46.5 m²), as it provides a very high clean air delivery rate (CADR). This unit is jam-packed with features, including Wi-Fi and built-in particle sensors, so it can automatically adjust its fan speed to match changes in ambient air quality even when you aren't there to keep an eye on things. It's barely audible at its lowest fan speed, making it a stellar option for overnight use in bedrooms. While turning down its fan speed setting does blunt performance slightly, it's still more than able to operate effectively in most bedrooms in a low-noise configuration. Do note, however, that it's rather loud at its highest fan speed, which can be distracting if you have it set up to run in a large area and need it to run at full speed. There's also no getting around the fact that this is a very bulky unit, which can make it something of a hassle to set up if you don't have a lot of free space.
It has a multi-stage filtration system. The stainless steel mesh pre-filter tackles larger debris like dust clumps and fine hair. Following that, there are two filters for mold, viruses, and bacteria, an ozone filter, and then a combined HEPA/activated carbon for trapping things like pollen and fine dust, as well as reducing odors. Aside from the HEPA/activated carbon filter, the other filters have an advertised lifespan of 20 years, which results in lower operating costs compared to other air purifiers with shorter-lived filters.
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Best Upper Mid-Range Room Air Purifier For Allergies
Bedroom9.0Pets9.1Particle Filtration Rate9.1Filtration Layers4 StageActivated CarbonSheetRecommended Room Size @ Max Fan Speed62.2 m² (670 ft²)See all our test resultsMeasured PM1.0 CADR729 m³/hr (429 CFM)The Blueair Blue Signature Large is the best upper mid-range air purifier for allergies that we've tested, thanks to its very high overall performance and whisper-quiet operation. This premium unit lacks the NuWave's washable filter system, resulting in higher costs of ownership, but if that isn't a concern, there's a whole lot to like here. The BlueAir has an incredibly high max clean air delivery rate (CADR) and is capable of clearing the air in spaces exceeding 650 ft² (20.3 m²), outdoing the pricier NuWave OxyPure in this regard. As a result, it's more than capable of handling allergens like pet dander or pollen, even as a standalone unit in open-concept living areas or bigger basements. Its subtle design, optional legs, and flat top also allow you to use it as a small end table, too, so it'll blend into the background more seamlessly than the bulkier NuWave.
There is one potential downside, however. The Blueair's multi-stage filtration system also includes a particle ionization stage to attract airborne particles and further improve performance, which produces a small amount of ozone while running. While this system's ozone production rate is AHAM-certified to fall within safe limits, it can't be disabled, which could be a dealbreaker if you or someone else in your household suffers from ozone sensitivity.
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Best Mid-Range Air Purifier For Allergies
Bedroom8.0Pets8.0Particle Filtration Rate8.0Filtration Layers3 StageActivated CarbonSheetRecommended Room Size @ Max Fan Speed36.2 m² (390 ft²)See all our test resultsMeasured PM1.0 CADR424 m³/hr (250 CFM)If you find the Blueair Blue Signature Large's performance to be overkill for your needs and are particularly worried about its ozone production, the Winix C610 is a very good option. Similar to the Blueair, the Winix is equipped with an ionizer-like system that's meant to neutralize fine airborne pollutants, but also produces a small amount of ozone. Unlike the Blueair, however, this so-called PlasmaWave feature can be disabled, and doing so doesn't have a dramatic impact on performance. The rest of the Winix's filtration system is more than up to the task of handling common allergens. There's a mesh pre-filter for large dust motes and strands of pet hair, a True HEPA filter for dealing with fine dust, pollen, and pet dander, and an activated carbon filter to help reduce odors and vapors, though that carbon sheet isn't substantial enough to have a massive impact. There's a good array of extra features too: you can set the unit to automatically adjust its fan speed, handy if air quality takes a dive while you're asleep, and even operate the air purifier remotely and set operating schedules with the smartphone app.
The Winix's clean air delivery rate is considerably lower than the Blueair, and it'll take roughly 30% more time to provide the same level of air quality in an equivalently sized space. That isn't to say that the Winix is a poor performer; however, it's still a good match for the vast majority of dining and living areas, with a maximum clean air delivery rate (CADR) that's suitable for areas up to nearly 400 ft² (37.2 m²). On the downside, lowering the fan speed to reduce noise has a drastic impact on performance, though it's still just about enough for most bedrooms and offices in this configuration.
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Best Budget Air Purifier For Allergies
Bedroom7.2Pets6.4Particle Filtration Rate6.0Filtration Layers3 StageActivated CarbonPelletsRecommended Room Size @ Max Fan Speed13.2 m² (142 ft²)See all our test resultsMeasured PM1.0 CADR154 m³/hr (91 CFM)If you want an air purifier for dealing with allergies in smaller rooms, the Levoit Core 200S is another great option. Compared to the Winix C610, it'll take more than twice as long to reduce airborne contaminants to the same level in an equivalently sized room. That said, it's also the most compact option listed here, and its performance is generally suitable for smaller studies and bedrooms. Operating noise at low fan speeds is a plus point, perhaps unsurprisingly due to this unit's relatively small and low-powered motor. You can set this unit up on a nightstand or a bookshelf to run continuously without it presenting much of a massive disturbance. That said, it can be a bit of an annoyance if you run it constantly at its higher fan speed, which will be required for effective use in bigger bedrooms.
Unlike the pricier picks on this list, it isn't capable of automatically adjusting its fan speed depending in real time and lacks a built-in particle sensor, though that's unsurprising for a model in this price range. On the upside, you can remotely adjust its fan speed or set operating schedules using the VeSync smartphone app.
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A DIY Alternative
Bedroom4.3Pets7.7Particle Filtration Rate9.5Filtration Layers1 StageActivated CarbonNoneRecommended Room Size @ Max Fan Speed80.5 m² (867 ft²)See all our test resultsMeasured PM1.0 CADR943 m³/hr (555 CFM)If you're sensitive to allergies but don't mind getting your hands dirty, consider building your own Corsi-Rosenthal Box. Compared to the household units recommended in this article, this type of air purifier delivers a CADR sufficient for very large spaces like garages, workshops, or big basements, nearly 1000 ft² (92.9 m²) in size. In real-world terms, when used in an equivalently sized space, it'll provide a similar level of air quality as the Nuwave Oxypure in roughly two-thirds the time. This design does come with compromises, however: it has an even larger footprint than already-bulky units like the NuWave, and this design generates a significant amount of noise while running, regardless of fan speed. Some users have swapped out the single fan for multiple PC cooling fans to reduce noise, though we haven't tried it and can't verify its effectiveness. In addition, unless you use a smart plug, there's no way to operate the device while you're away from home, either.
We built our Corsi-Rosenthal Box with this guide, which features a 20-inch Lasko box fan and a quartet of MERV 13 3M Filtrete air filters. While the upfront cost of buying all these materials is generally less than the total cost of a high-end household unit, you'll need to replace the filters once they've been fully used, which means purchasing a new set of filters and effectively rebuilding the entire unit; this can drive up recurring costs in the long run.
Notable Mentions
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Dyson Purifier Big+Quiet Formaldehyde BP04:
The Dyson HEPA Big+Quiet Formaldehyde BP04 is a high-end air purifier and a good alternative to the NuWave OxyPure if you want something quieter and don't mind spending much more.
See our review -
Levoit Core 600S:
The Levoit Core 600S is a good alternative to the Blueair Blue Signature Large if you have no need for the latter's particle ionization system. That said, it falls short in terms of CADR.
See our review -
Levoit Vital 200S:
The Levoit Vital 200S lags behind the Winix C610 in terms of CADR, but it also takes up less room and runs more quietly.
See our review -
Coway Airmega 200M:
The Coway Airmega 200M is a good alternative to the Winix C610, offering a higher CADR at lower, quieter fan speeds. However, it lacks Wi-Fi connectivity and has a slightly wider footprint, which can be an issue in rooms where space is at a premium.
See our review -
Rabbit Air A3:
The Rabbit Air A3 is a high-end air purifier that runs impressively quietly, has a great maximum CADR, and features a variety of available filters for different kinds of allergens. That said, the Blueair Blue Signature Large provides a lot more in the way of coverage.
See our review -
Mila Air 3:
The Mila Air 3 is a high-end compact air purifier with a swappable filter system. It takes up less space than the Blueair Blue Signature Large, but can't deliver anywhere near the same amount of performance.
See our review -
Blueair Blue Pure 211i Max:
The Blueair Blue Pure 211i Max is a high-end air purifier that performs similarly to the Blueair Blue Signature Large. It's a good alternative if performance is your main concern, as it lacks the Signature Large's more subtle design.
See our review
Recent Updates
Jun 30, 2026:
We've replaced the Mila Air 3 with the Blueair Blue Signature Large as 'Best Upper Mid-Range Room Air Purifier For Allergies' pick due to the latter's superior performance. We've also added the Rabbit Air A3, Mila Air 3, and Blueair Blue Pure 211i Max to the Notable Mentions section.
May 20, 2026:
We've replaced the Coway Airmega 200M with the Winix C610 as the 'Best Mid-Range Air Purifier For Allergies' pick due to superior maximum performance. We've also added the Coway Airmega 200M to the Notable Mentions section of the article.
Apr 23, 2026:
We made minor text adjustments to further clarify product details. We also added the Levoit Core 400S to the Notable Mentions.
Feb 27, 2026:
We've made several changes to our recommendations due to current product availability and new performance data from version 1.1 of our air purifier test bench. We replaced the Honeywell HPA300 with the NuWave OxyPure as the top pick. We added the Mila Air 3 as the new 'Best Upper Mid-Range' pick. We replaced the Levoit Vital 200S with the Coway Airmega 200M as the 'Best Mid-Range' pick. We replaced the Levoit Core 300 with the Levoit Core 200S as the 'Best Budget'. We added the Levoit Vital 200S and the Levoit Core 600S to the Notable Mentions.
Nov 13, 2025:
We've checked that our picks represent the best recommendations and that the products are in stock.
All Reviews
Our recommendations above include some of the best air purifiers for allergy sufferers. We factor in price, feedback from our visitors, and availability.
That said, there is no single best air purifier 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.