Skip to main content

The best air purifiers

(Image credit: Coway)

Whether you suffer from allergies, have pets who shed, live with a smoker or simply want to breathe better, air purifiers can filter out many of the most dangerous particles in your home. While no device can completely eliminate pollutants or substitute for ventilation with clean outdoor air, the best air purifiers can improve respiratory health, according to the EPA. 

Based on more than 15 hours of research, over 30 brands considered and dozens of customer and expert reviews read, we've identified the top air purifiers for your home or office. Our top pick is the Coway AP-1512 HH Mighty. With its consistently strong performance for the price, it's the best purifier for most people. 

If you are on a budget, we recommend either the Levoit LV-H132 or the Blueair Blue Pure 411. Finally, if money is no object and clean air is critical to your health needs, the IQAir HealthPro Plus may fit the bill. We also have air-purifier recommendations for every need in between.

(Image credit: Coway)

Coway AP-1512 HH Mighty

Room size: 361 square feet | Filters: True HEPA + washable prefilter + odor filter + bipolar ion filter | CADR (smoke/dust/pollen): 223 cfm/246 cfm/240 cfm | Speeds: Three | Warranty: Three years

The top air purifier overall

The Coway AP-1512 HH Mighty is consistently listed among the top-ranked and highest-regarded air purifiers on the market — and with good reason. It's reasonably priced for how well it works, it's one of the quieter machines of its size, and it has most of the features we'd want in an air purifier, including a programmable timer, several fan speeds and a filter indicator light.  

In Wirecutter tests, the Coway AP-1512 HH Mighty outperformed most other machines even after the filter's life span had passed. Replacement filters are fairly cheap and energy costs relatively low, which makes the Coway one of the least expensive air purifiers of its caliber to maintain year to year. The reviewers also said the filter-replacement process is straightforward. 

Finally, the Coway AP-1512 HH Mighty is easy on the eyes. It comes in sleek black or white and is relatively compact compared with many other purifiers of similar performance, so it simply fades into a corner.  

The Coway Mighty is one of the only purifiers we considered that has an ionizing function. The effectiveness and safety of ion filters is questionable (due to possible ozone production), but you can just turn this function off.  

(Image credit: Blueair)

Blueair Blue Pure 211+

Room size: 540 square feet | Filters: HEPASilent filter + washable pre-filter | CADR (smoke/dust/pollen): 350 cfm | Speeds: Three | Noise level: 31–56 dB | Warranty: One year

The most attractive air purifier

The Blue Pure 211+ is highly rated by Wirecutter, Consumer Reports and others for its solid performance in removing dust, smoke and pollen from room air. 

The Blueair's filters aren't true HEPA-certified, but they are still effective. They work by giving particles an electric charge, which causes those particles to stick to filter fibers. In Wirecutter tests, the 211+ reduced particulates by more than 99% when operating on high. 

The Blue 211+ pre-filter comes in five different colors, from eye-popping yellow to low-key gray, so you can customize the look for your space. The machine also has a filter indicator light to let you know when it's time to replace your main filter. 

Possible downsides of the Blue Pure 211+ include more noise on lower speeds compared with similar machines, and relatively high purchase and maintenance costs. For example, it draws more power than the Coway on similar speeds (though it moves more air) and it is a bit louder and more expensive (both upfront and over time). 

(Image credit: Blueair)

Blueair Blue Pure 411

Room size: 161 square feet | Filters: HEPASilent filter + washable pre-filter | CADR (smoke/dust/pollen): 105 cfm/120 cfm/120 cfm | Speeds: Three | Noise level: 17– 46 dB | Warranty: One year

Works well in small spaces

The Blue Pure 411 is like the 211+'s much smaller sibling. It uses similar filtering technology and features and comes in a variety of colors. 

Where the Blue Pure 411 stands out is in price and efficiency. The purifier is inexpensive to buy (just over $100) and maintain (around $20 annually for replacement filters), and it uses significantly less energy than most other air purifiers we researched. The machine is also small, compact and quiet, making it a great choice for your bedroom. 

The one thing to keep in mind is that if you plan to move your purifier from room to room, the Blue Pure 411 won't be very effective in larger spaces. 

(Image credit: Conway)

Coway Airmega 400

Room size: 1,560 square feet (maximum) | Filters: Dual true HEPA/carbon filter + washable pre-filter | CADR (smoke/dust/pollen): 350 cfm | Speeds: Four | Noise level: 22–52 dB | Warranty: Five years

Works well in large spaces

Coway's Airmega 400 is a high-performing air purifier at a high price, but reviewers generally agree that the trade-off is worthwhile. The Airmega 400 has a dual carbon + true HEPA filter, which allows it to clean the air in a large space over a short period more effectively than other machines. 

Coway claims the Airmega 400 is good for filtering rooms of up to 1,560 square feet, but you'll likely get better performance in rooms that are half that size. In Wirecutter tests, the Airmega 400 completed 8.8 air changes per hour in a 350-square-foot room and four in a 770-square-foot room. If you put the purifier in a space up to the maximum recommended size, it'll do two or fewer air changes per hour. 

The Airmega 400 is large but sleek, and it has convenient features like a programmable timer and a display shut-off to minimize disruption during sleep. There's also a "smart" version (the Airmega 400S) that you can integrate with an Alexa device or a mobile app. 

(Image credit: Austin)

Austin Air HealthMate HM-400

Room size: 938 square feet | Filters: True HEPA + large pre-filter + medium pre-filter + carbon filter | CADR (smoke/dust/pollen): N/A | Speeds: Three | Noise level: 39.8–64.5 dB | Warranty: Five years

The longest-lasting filters

The Austin Air Healthmate HM-400's main selling point is its high-performing and long-lasting filters, which handle everything from mold and pet dander to gas and chemical contaminants. It isn't CADR-tested, but it gets high marks from reviewers for filtering volatile organic compounds (VOCs) that come from household products such as paints, pesticides and air fresheners better than most other machines on the market. 

In addition to being effective, Healthmate HM-400 filters last for up to five years. You can vacuum or clean the pre-filter periodically in that time as well. 

Criticisms of the Healthmate HM-400 include a fairly time-consuming filter-replacement process as well as noisy medium and high fan speeds. The unit also doesn't have some basic features (such as a programmable timer or filter indicator light) that you'd expect even at a lower price, and it's fairly power-hungry. 

While the Healthmate HM-400 is pricey, it's a good option if you have particular concerns about chemicals and odors. 

(Image credit: Honeywell)

Honeywell HPA300

Room size: 465 square feet | Filters: True HEPA + disposable pre-filter | CADR (smoke/dust/pollen): 300 cfm/320 cfm/300 cfm | Speeds: Four | Warranty: Five years

A good value pick among air purifiers

Honeywell air purifiers get decent reviews across the board, and the HPA300 is a good unit for a fairly reasonable price. It has among the highest CADR ratings for smoke, dust and pollen of the units we recommend, and it can filter slightly larger rooms effectively. It also has four speeds (compared with three on most units), a programmable timer and adjustable control panel lights.

The HPA300 is also portable, so you can move it easily between rooms. Consumer Reports found that this unit is very effective and quiet at its lowest speed, so it won't be too disruptive in a bedroom or even in the background elsewhere in your home. The HPA300 is also quieter at higher speeds than some other units, although Wirecutter tests measured noise at 62 dB on the highest setting. 

Where the Honeywell HPA300 could fall short is in its filter-replacement and maintenance requirements. Both the true HEPA filter and pre-filter are disposable and must be replaced every six to 12 months.The HEPA filter is actually three filters that reviewers said can be tricky to get in the exact right spot. 

(Image credit: Levoit)

Levoit LV-H132

Room size: 129 square feet | Filters: True HEPA + disposable pre-filter + carbon filter | CADR (smoke/dust/pollen): 110 cfm | Speeds: Three | Noise level: 50 dB max | Warranty: Two years

For very tight budgets

The Levoit LV-H132 is an Amazon best-seller and the most budget-friendly purifier on our list. Reviewers said it does a decent job for the price, especially with pet odors. It's also a sleek machine that's lightweight, compact and portable, so you can easily move it around your home. 

At this price, you can't expect bells and whistles — and the Levoit LV-H132 doesn't have any. There is no programmable timer, and the device's filter indicator light reminds you to check your filters but does not tell you when it's time to actually replace them. You have to toss all three filters every six months to a year, as the pre-filter isn't washable. But two replacement sets will cost you just $30. 

Reviewers report that the Levoit LV-H132 is fairly loud on higher settings, so sensitive sleepers may struggle to use this unit in their bedrooms. The buttons are also reportedly finicky — they may stick, freeze, or quit working altogether. 

If you're looking for an inexpensive air purifier — or want several machines to cover multiple bedrooms in your home — the Levoit LV-H132 is a decent unit to start with. Truthfully, though, it's probably worth it to spend a bit more for a better device (like the Blue Pure 411) than to compromise with the Levoit. 

(Image credit: PureZone)

PureZone 3-in-1 True HEPA Air Purifier

Room size: 200 square feet | Filters: True HEPA + disposable pre-filter + carbon filter + UV-C light | CADR (smoke/dust/pollen): 80 | Speeds: Three | Noise level: 30–50 dB | Warranty: Five years

For nurseries and bedrooms

The PureZone 3-in-1 True HEPA Air Purifier is another popular (and budget-friendly) model among customers. It's small, sleek and unobtrusive, which makes it a good choice for those who care about aesthetics and decent performance. 

What sets the PureZone 3-in-1 apart is its quiet operation. It's soft on lower settings and has an automatic timer that can shut the device off while you sleep. This makes it a good option for bedrooms and babies' rooms where noise and light disruption matter. The device  comes with a five-year warranty, longer than other machines at similar prices. 

The PureZone 3-in-1 has one of the lowest CADR ratings of the devices on this list (80 cfm) and reportedly has a weak fan that limits it to small spaces, but reviewers say that it's effective at filtering most common air particles. 

(Image credit: IQAir)

IQAir HealthPro Plus

Room size: 1,125 square feet | Filters: HyperHEPA + disposable pre-filter + V5-cell gas & odor filter | CADR (smoke/dust/pollen): N/A | Speeds: Six | Warranty: 10 years

For allergy sufferers

Let's state the obvious: the IQAir HealthPro Plus is expensive. At around $900, it's more than twice the price of many other picks on our list. But if you're serious about air purification, this machine is well worth your consideration. It uses HyperHEPA filters, which reportedly retain particles at a rate 100 times higher than standard HEPA filters, as well as a secondary filter for odors and gases. 

The IQAir HealthPro Plus also covers a huge area (1,125 square feet) at two air changes per hour, and can do six per hour in a smaller room. Plus, it has six speeds, programming options, filter indicators and a remote control. 

This purifier is a top seller and highly rated by experts at Allergy Buyers Club, especially for those who have allergies or other special health concerns that are affected by air quality. While it isn't CADR-rated, IQAir tests every unit individually and offers a 10-year warranty, double the time of any other device we recommend. 

While the IQAir HealthPro Plus is larger, louder and pricier than most air purifiers, reviewers say it may provide the relief those with asthma, allergies and respiratory challenges seek.