The 5 Best Air Purifiers of 2025

Best Overall Air Purifier

Coway Airmega 1512HH

Airborne Particulate Reduction After 1 Hour (%)	100.00%
Measured Annual Cost	$110.16
CADR	234 (Smoke) 248 (Dust) 232 (Pollen)
Measured Dimensions	9.6" x 16.8" x 18.3"
Measured Weight	13.1 lbs

The Coway Airmega 1512HH is seriously impressive—and you can tell by its high ranking on our list of the best air purifiers. With an exceptional clean air delivery rate of 234 (Smoke), 248 (Dust), and 232 (Pollen), plus decently solid coverage (rated for 1,748 square feet), it really shined in our air cleaning performance test. It cleared 100% of large airborne particles from smoke, which is about as good as it gets.

You might be wondering if a machine this powerful is going to be loud or annoying while it's running. We checked that for you too. At six feet away on the medium setting, where you'll probably keep it most of the time, it's almost silent. But when you crank it up to high, things do change. We noticed a big jump in volume, but it wasn't overly intrusive. One tester said, “It sounds like a fan without that annoying buzz or whine.” So, if you're okay with a bit of white noise (55.9 decibels on high), you should be just fine. The great thing is, you can just keep it on medium or low and barely notice it's even there. If you want a quiet purifier that's still effective, the Levoit LV-H132, but it's only meant to cover 129 square feet.

One thing to keep in mind is the limited filter options, but the current setup does a great job. If you're after something with more specialized filters (maybe for pets or heavy smoke), the Levoit Core 300 offers four different filter choices. Also, if you don't think the 219 square foot coverage will cut it for your space, you might want to check out the Levoit Core 400S, which covers up to 1,560 square feet, or the Alen BreatheSmart 45i which covers 1600 square feet and handles bigger spaces like a pro.

Read more: Coway Airmega 1512HH review

Best High-End Air Purifier

Alen BreatheSmart 45i

Airborne Particulate Reduction After 1 Hour (%)	99.98%
Measured Annual Cost	$178.96
CADR	245 overall 139.9 (Smoke) 207.9 (Dust) 230.4 (Pollen)
Measured Dimensions	8.5" x 15.0" x 25.0"
Measured Weight	15.5 Ibs

The standout feature of the Alen BreatheSmart 45i has to be the app. It lets you control the purifier right from your phone, and the app is super intuitive—audible feedback confirms every change you make, so you're never left guessing. It even turns your phone into a remote, so you don't have to mess with the controls on the unit itself. But even if you don't use the app, the purifier's interface is crisp, clean, and really responsive. It's not just about looks either—this model performs as well as it looks, with impressive air cleaning power. While it didn't completely clear out the smell from our smoke test, it did manage to eliminate 99.98% of large particles, putting it right up there with the top performers. If you're interested in a purifier that has the best air cleaning performance of the group, check out the Coway Airmega 400S. It cleaned 100% of particulates in our test room.

Overall, the Alen BreatheSmart 45i is a great choice for most people. With 1600 square feet of coverage, it should be more than enough for the average space. If you need something for an even larger area, you could look at the Coway Airmega 400S, which lists an impressive 3,120 square feet of coverage. Just know that it'll have a lifetime cost of $1,356 factoring in electricity usage, filter replacements, and its high list price.

While the Alen BreatheSmart 45i is energy-efficient and Energy Star certified, the main downside is the $69 filter cost. The initial price for the unit and ongoing filter replacements are on the higher side, which could affect the overall value. If you're budget-conscious, you might want to check out the Blueair 311i Max. It offers similar air purifying performance at a much lower price point. One of our testers mentioned that “Blueair nails the minimalist look.” The model did well in our tests, though the auto mode wasn't always reliable for kicking the fan into high gear when needed. It's also worth noting that Blueair uses a unique design, where the filter is the base of the purifier, covered by a cloth, instead of a bulky plastic frame.

Read more: Alen BreatheSmart 45i review

Best Value for a Smart Air Purifier

Levoit Core 400S

Airborne Particulate Reduction After 1 Hour (%)	100.00%
Measured Annual Cost	$148.14
CADR	Sleep: 59 Speed 1: 88 Speed 2: 118 Speed 3: 177 Speed 4: 260 *Per Levoit, their stated CADR ratings for this product are the same for Smoke, Dust, and Pollen but differ for fan speeds
Measured Dimensions	10.8" x 10.8" x 20.5"
Measured Weight	10.4 Ibs

If you're after an app-controlled air purifier with great performance, low noise, easy setup, and an affordable price tag, the Levoit Core 400S is a fantastic option. With an impressive clean air delivery rate (CADR) of 260 on its highest setting and a built-in air quality sensor, it automatically kicks into gear when the air needs it. Plus, the noise level is super reasonable for its class at 51.8 decibels, so you won't have to choose between clean air and peace and quiet.

Setting up the Core 400S is a breeze. It takes about five minutes from unboxing to turning it on. The app is super handy for remote control and tweaking settings. The Core 400S covers up to 1,560 square feet, which is one of the best in its class. Another option with just as much coverage but even better air cleaning ability is the Coway Airmega 400S. We did have to fiddle a little more with this model during setup due to having to remove the front of the unit in order to access the filter, but it wasn't a deal breaker.

While the upfront cost of the Core 400s is competitive for its size and power, and it doesn't use much electricity. The filter replacements can get pricey at $49.99 a pop, which turns into $100 annually with regular use. So, in the long run, it's not the cheapest to maintain. That said, it's technically not an exorbitantly high price for a unit of this size. But, if you're looking for an even lower-cost alternative, the Winix 5500-2 is a solid choice. It performs well, has a lower initial cost, and often goes on sale—sometimes knocking $100 off the price on Amazon. All told, you're saving money at every turn with this option, and it will still do a great job of cleaning your air.

Read more: Levoit Core 400S review

Best Value for Small Rooms

Levoit Core 300

Airborne Particulate Reduction After 1 Hour (%)	99.92%
Measured Annual Cost	$96.81
CADR	141 (Smoke) 140 (Dust) 145 (Pollen)
Measured Dimensions	8.7" x 8.7" x 14.2"
Measured Weight	7.3 Ibs

Not everyone needs massive coverage or tons of power for their space. For some people, the Levoit Core 300 might be more than enough. It covers 219 square feet and has a CADR rating of 141 for smoke, 140 for dust, and 145 for pollen. Those numbers might not sound super impressive compared to units like the Blueair 311i Max or the Alen BreatheSmart 45i, but that raises the question: How much power do you really need? The compact Core 300 weighs just 7.3 pounds, so it's easy to move around and won't take up much space—it can even sit on your nightstand or a side table. And while it's small, it's still highly effective. In our smoke test, it removed 99.92% of large particles from the air in just an hour.

With its low initial price and affordable operating costs, the Levoit Core 300 is a great choice for anyone on a budget. If you need more coverage but don't want to spend a lot, the GermGuardian AC4825E is a solid alternative that handles spaces up to 743 square feet. But, if the room your purifying is only 400 feet or less, you probably don't need all that power.

On the high setting, the Levoit Core 300 can get noisy — we measured the sound level to be 52.3 decibels. Our testers didn't find the sound too obnoxious, but it's definitely there. “It's noticeably louder than the medium setting, with a steady fan noise kind of like a heater,” Gena Bradshaw said. If noise is an issue for you, there are quieter options out there, like the Levoit LV-H132. But if you're someone who enjoys a bit of white noise, this won't be a problem at all.

Read more: Levoit Core 300 review

Best for Larger Rooms

Coway Airmega 400S

Airborne Particulate Reduction After 1 Hour (%)	100.00%
Measured Annual Cost	$271.28
CADR	328 (Smoke) 328 (Dust) 400 (Pollen)
Measured Dimensions	14.8" x 14.8" x 22.8"
Measured Weight	24.6 Ibs

The Coway Airmega 400S is the go-to air purifier if you're looking to tackle lots of particulates in large spaces. It has one of the highest clean air delivery rates (CADR) in its class—328 for smoke, 328 for dust, and a whopping 400 for pollen. In our smoke test, it completely cleared the room of large particles in just 60 minutes, with most of the work done in the first 20 minutes. And despite its powerful performance, the noise level stays impressively low when measured from 6 feet away with a decibel reader. It registered at 51.2 decibels, and one of our team members said, “It just sounds like whirring air. It does not have an annoying buzz or hum.”

Another thing we like about the Airmega 400S is its air quality sensor, which automatically adjusts the purifier to maintain optimal air quality without wasting energy. So, while it's powerful, it's also smart about how it runs, helping to keep power consumption down as much as possible.

Keep in mind that this isn't a small unit. At 14.8" x 14.8" x 22.8" and weighing 24.6 pounds, it's more like a piece of furniture or a large appliance. If you're looking for something more portable, the Honeywell PowerPlus HEPA is a much smaller option. But if you have the space, the Airmega 400S really delivers.

While the Airmega 400S is a beast when it comes to air cleaning, it does have some major downsides. The most notable is the cost. Not only is the upfront price high and hard to justify, but its filter replacements are exorbitantly priced compared to all other purifiers we tested at $129 per filter. Some purifiers in our lineup actually cost less upfront than the Airmega 400S's filter. We measured the estimated lifetime cost of this unit to be $1,356, factoring in the list price, filter costs, and electricity use over five years. That's higher than any other air purifier we tested. That said, no other purifier we tested cleaned the air as thoroughly or quickly as the Airmega 400S. It's an efficient powerhouse. Plus, it's equipped with app support, so you can monitor air quality and program its operation from your phone, which is a huge convenience. So, while it's an investment, if you need a workhorse for large spaces, this is hard to beat.

Read more: Coway Airmega 400S review

Compare Products

Compare select up to 5 products to compare

	Score	Product	Price
	82	Alen BreatheSmart 45i Best High-End Air Purifier	$468
	81	Coway Airmega 1512HH Best Overall Air Purifier	$240
	81	Levoit Core 400S Best Value for a Smart Air Purifier	$220
	79	Blueair Blue Pure 311i Max	$230
	78	Coway Airmega 200M	$230
	77	Winix 5500-2	$250
	75	Levoit Core 300 Best Value for Small Rooms	$100
	75	Coway Airmega 400S Best for Larger Rooms	$749
	72	Levoit LV-H132	$90
	61	GermGuardian AC4825E	$100
	59	Honeywell PowerPlus HEPA	$100

How We Tested

We bought the 11 most promising purifiers at retail; no test models were given to us. We then spent over 300 hours testing the air quality produced by each machine and assessing user-friendliness, noise levels, and overall operating costs. To test our lineup of the best purifiers, we used a professional grade air quality meter to measure airborne particulate concentrations and tested all of the purifiers in the same 150-square-foot room to keep conditions as consistent as possible. Check out our in-depth testing process here.

Our testing of air purifiers is divided into four rating metrics:

• Air Cleaning Performance (40% of overall score weighting)

• Noise (30% weighting)

• Ease of Use (20% weighting)

• Operating Costs (10% weighting)

Why Trust GearLab

Authors Buck Yedor, Nick Miley, and Genaveve Bradshaw have spent the last few years testing a variety of health and wellness products, including air purifiers, humidifiers, electric toothbrushes, and fitness trackers. They've also tested many other home and kitchen products, from security cameras and wireless speakers to toaster ovens and pressure cookers. This team is no stranger to diving into the nitty-gritty details and conveying them to consumers clearly and comprehensively. As someone who suffers from asthma and lives in a wildfire-prone area, Bradshaw takes air purifying seriously and runs her air purifier around the clock during fire season. She owns the Levoit Core 300 and finds it to be a great little purifier for her apartment.

Analysis and Test Results

To rate air purifiers, we divided our tests into four different weighted metrics. The results of our air cleaning performance tests factor most heavily into each model's final score. In the following sections, we delve into the details of these metrics so that you can pick the best air-cleaning device for your needs.

What's the Best Value?

In general, paying more for an air purifier will get you a greater clean air delivery rate, a quieter motor, and more customization features — there are exceptions, however. For example, the Winix 5500-2 provides stellar performance and often sells for significantly less than its list price. The Levoit Core 300 also performs well above what its price suggests, offering high-quality air cleaning for less than many competitors. Finally, the Levoit Core 400S is a screaming deal if you want a smart device that provides remote access and monitoring. These devices are great examples of value purchases, as revealed by our exhaustive testing.

Air Cleaning Performance

Air cleaning performance is the heaviest-weighted metric in our review. It analyzes the thoroughness in removing particulate matter, the rate of particulate filtering, and the ability of each purifier to remove odors while cleaning the air. We sealed a 150-square-foot room in our testing facility and filled it with smoke by burning paper. Once we got the room to the desired level of airborne particulate pollution, we ran each purifier for an hour, all the while monitoring the air cleaning progress with a Dylos air quality meter and an additional air quality data logger for good measure. We also used an AQI Reader as another point of reference. Our tests focused on eliminating airborne particles measuring 2.5 microns and larger because this range includes most airborne allergens affecting humans, such as pet dander, pollen, and mold. We chose to focus on allergens because most people looking to purchase an air purifier are doing so for allergy relief and smoke relief.

Clean air delivery rate (CADR) is an industry standard used to rate air purifiers. As the name implies, CADR describes how much air these devices can process. As a general rule, the CADR should be about ⅔ of the square footage of the area, assuming 8-foot ceilings.

The Coway Airmega 400S (along with some other models) breaks up its CADR ratings into different types of particulate matter: 328 for smoke, 328 for dust, and 400 for pollen. It also cleared out 100% of the large particles in our smoke test which is very impressive. It's capable of covering large spaces up to 3,120 square feet. The Levoit Core 400S doesn't quite match it regarding its CADR rating, but the air cleaning ability was still top notch. Not to be overshadowed, the Alen BreatheSmart 45i is also a powerful and capable machine. These models did exceptionally well at clearing out the odor left behind by the smoke. The Blueair 311i Max was one of the top performers when it comes to odor elimination, but fell a tiny bit short in terms of coverage. For the sake of consistency, we used the filter that came with each air purifier, though some models allow for specialty filters that can more effectively eliminate things like odors or smoke. This is worth keeping in mind if you plan to use your model of choice for a specific application.

As you can see in the chart above, those air purifiers with the highest clean air delivery rates fared the best in our smoke testing which was logged over the course of an hour.

Clean Air Delivery Rate

There are two main takeaways from the air cleaning performance metric. One is that it's vital to match the CADR to the room size — meaning that if you have a rather large room, you'll want an air purifier that can cover that amount of space. The other takeaway is that air purifiers are poor at removing odors. That said, the Coway Airmega 400S, Blueair 311i Max, and Levoit Core 400S did pretty well in this difficult task. These air purifiers use multi-layered filter systems, including a prefilter and activated carbon filter. The Coway Airmega 400S and Blueair have a True HEPA filter, while the Levoit Core does not. All told, the Alen BreatheSmart 45i, Coway Airmega 400S, and Levoit 400S are some of the best choices for overall air cleaning performance.

CADR Ratings

Product	Smoke	Dust	Pollen
Coway Airmega 400S	328.0	328	400
Levoit Core 400S	260.0	260	260
Blueair 311i Max	250.0	250	250
Winix 5500-2	232.0	243	246
Coway Airmega 200M	233.0	246	240
Coway Airmega 1512HH	234.0	248	232
Alen BreatheSmart 45i	139.9	207.9	230.4
Levoit Core 300	141.0	140	145
Honeywell PowerPlus HEPA	129.0	145	145
GermGuardian AC4825E	99.0	118	125
Levoit LV-H132	40.0	40	40

As part of our air performance rating, we take into account the CADR ratings of each unit, which makes up 15% of each units air performance score. The units with the highest CADR ratings are unsurprisingly some of the best performers in our smoke test, namely the Coway Airmega 400S, Levoit Core 400S and the Blueair 311i Max.

The air purifiers with some of the highest listed coverage also performed the best in our smoke test.

Overall Air Cleaning Performance

The final air cleaning performance score combines results from the smoke/odor test, the listed coverage area, CADR (clean air delivery rate) specs, and how many specialty filters each purifier can use. The top-scoring devices simply cleaned the air more efficiently and effectively.

Noise

Since most people will be in the same room as the air purifier, any odd noises the device produces could have a significant negative impact on your relationship with it. The good news is that most of the tested models are not particularly loud — none registered more than 60 decibels on our sound meter, which is roughly the sound of a chatty office or restaurant. Still, even relatively quiet noises can be annoying if they're at the wrong pitch. Thus, we spent a night with each in our bedrooms and hours working on our computers right next to each model as they ran.

The Levoit LV-H132 is nearly silent when set on low and audible but not offensive when set on high and measured in at only 46.1 decibels. When considering the noise and power of a purifier, very few models come close to the Alen BreatheSmart 45i. We were quite impressed at how quiet this machine is (just 48.3 decibels on high), as much smaller units produce significantly more noise.

Outside of exceptions like the GermGuardian AC4825E and Honeywell PowerPlus HEPA, which were still pretty loud on low, every other air purifier we tested was nearly silent on their lowest setting. If you plan to run your air purifier on high most of the time, you can't beat the Alen BreatheSmart 45i or Levoit LV-H132.

Overall Noise

This overall noise score combines the results from our tests on the loudness, tone, and pitch of each air purifier at all power settings. Higher-scoring devices either had low sound levels, as measured by a decibel reader, or their tone and pitch were pleasant enough to fade into the background. Those with lower scores were either registering pretty loud (50+ decibels) or the noise that was emitted was considered grating or annoying by testers.

Noise

Product	High	Medium	Low
Levoit Core Mini	10.0	10	10.0
Levoit LV-H132	8.1	7.6	10.0
Blueair 311i Max	6.5	7.0	10.0
Shark Clean Sense HEPA HP102	6.7	6.5	10.0
Coway AP-1512HH	2.9	10	10.0
Alen BreatheSmart 45i	6.9	4.9	10.0
Coway Airmega 400S	5.4	5.8	10.0
Levoit Core 300	4.8	6.2	10.0
Levoit Core 400S	5.1	5.3	10.0
Winix 5500-2	4.0	6.1	10.0
Coway Airmega 200M	1.0	9	10.0
GermGuardian AC4825E	5.4	1.0	5
Honeywell PowerPlus HEPA	3.8	2.3	5

Ease of Use

Outside of periodically replacing the filter, air purifiers are generally simple and require no maintenance. However, certain features can make day-to-day use more enjoyable. Variable fan modes let you dial down the noise while watching TV, and remote controls let you do that without leaving the couch. Handles and wheels make it easy to transport the purifier if you want to move it from the living room to the bedroom. If you're likely to forget to turn the purifier off when you leave the house, timers can help, too. We evaluated all user/device interaction aspects to determine how easy they are to operate and incorporate into your daily routine.

Nearly all the air purifiers we tested required very little setup, and we didn't struggle much with replacing the filters either. Models like the Alen BreatheSmart 45i took a little longer to set up due to the app integration and inserting the filter, but it was one of the easiest to change the filter on once the original was depleted, so it balanced out. In contrast, the GermGuardian AC4825E comes with the filter already installed, so you simply have to plug it in and go.

Out of all the models we've tested, the Alen BreatheSmart 45i and Coway Airmega 200M offer the most convenient user experiences overall. The BreatheSmart was a pleasure to use from top to bottom, with everything from unboxing to changing filters and navigating the interface being spot on. You won't encounter any issues operating this model. It's also relatively portable at 15.5 pounds, thanks to its slim design, making it easy to place in your home without much intrusion. The Airmega 200M performed similarly, though filter replacement wasn't quite as quick—though still not a burden by any means. The Winix 5500-2 also provided a pleasant user experience, with easy-to-read interface and responsive controls. The Winix 5500-2 control panel is straightforward, allowing you to easily access its shutoff timers, fan speeds, and auto setting, which adjusts the air output based on the ambient air quality, as measured by its internal air quality sensor. Thanks to a well-designed carrying handle, it is quite easy to move this unit around despite its 15.4 pounds.

Many air purifiers come with an app to control advanced functions or simply operate the device. The main attraction of the Levoit Core 400S is its VeSync app, which turns your smartphone into a remote control. Not only is the app convenient for setting, monitoring, and operating the air purifier from across the room or even from anywhere in the world, but it also hosts several features unavailable on the user interface of most air purifiers in its class. For example, the app displays the current air quality around the Core 400S, the remaining filter life, and offers scheduling and timer options. Additionally, the app tracks data related to air quality—a pretty cool feature if you want to see how the device impacts your home environment over time.

Like the Levoit Core 400S, the Coway Airmega 400S uses an app to control it remotely via WiFi connection, though it has fewer features. Yet, its interface is also among the best, with a light bar displaying fan speeds controlled by touch. The unit has smart and night modes as well. The app has a timer, too, and accepts voice commands. While the app is useful, we acknowledge that some people may not want another app on their phone. Moreover, as some features on these two models are only available on the app, this can be seen as a mark against them.

The *Honeywell PowerPlus HEPA and Levoit Core 300 deserve special mention for their portability. The Levoit Core 300 is also relatively small at 7.3 pounds, with both models easily fitting on a nightstand. Although the Honeywell is slightly larger at 9.8 pounds and has a square form factor, it can still be placed just about anywhere in the home.

Keep in mind that while models like the Coway Airmega 400S, Levoit Core 400S, and Winix 5500-2 don't have the smallest footprint, they are designed for larger spaces. In other words, they are too large to be placed on a nightstand or small table. You'll want to choose a model based on your specific use case. Some users may need to move the air purifier frequently, while others may prefer to keep it stationary in their office, bedroom, or living room.

Overall Ease of Use

The overall ease of use score considers several factors like setup, filter replacement, smart integration through an app, interface, customization, portability, and storage footprint. Air purifiers that scored higher on this list tend to offer more convenience through smart design or are compact and easy to move around.

Operating Cost

It's easy to forget that you'll have to pay for replacement filters and electricity costs throughout the lifetime of using your air purifier. To estimate how much each unit will cost buyers in the long run, we've measured every purifier's energy consumption and price-checked the replacement filters. Our lifetime cost calculations assume the national average of $0.13 per kilowatt-hour and average usage of 12 hours a day on the medium setting, as well as replacing your filters according to the manufacturers' recommendations. We also include the cost of the device itself and split it up over five years in our calculations.

The discerning reader might guess that the most efficient units have low clean air delivery rates (CADR), which means they have low power consumption and smaller filters. For the most part, that's correct, as most purifiers that performed well in this metric have CADR ratings of 120 or less. However, the Coway Airmega 200M is an exception, with a CADR of 233-246.

Amazingly, the 200M also uses a HEPA filter — the highest standard non-industrial filter and often the most expensive. However, with this specific unit, you'll only need to change the filter out once a year. The interesting thing about the 200M is that we couldn't determine if it was Energy Star certified, as it was not listed anywhere we could find.

As expected, with CADR ratings greater than 240, the cost of operation increases. Models in this group include the Coway Airmega 1512HH, Winix 5500-2, Alen Breathesmart 45i, and the Coway Airmega 400S. The annual cost of operating these large-area air cleaning machines ranges from $112 to $271, with the Coway Airmega 1512HH on the low end and the Coway Airmega 400S on the high end. The 400S comes with two pairs of filter sets (HEPA filter and carbon filter), as this purifier has a filter on either side of the body. All of the units in this group utilize HEPA filters.

All told, operating costs are largely based on the amount of air you want to clean — the larger the space you want to clean, the more you'll have to spend. To put it more plainly, the higher the CADR, the larger and more expensive the filter, the more electricity the unit will draw, and, in general, the higher the cost of the purifier itself. The takeaway here is that you want to make sure you are matching the room where the purifier will be used to the purifier's CADR.

Overall Operating Cost

The overall operating cost score factors in electricity usage, filter costs, long-term ownership expenses, and the current MSRP. Higher-scoring models were either super efficient with electricity, had lower upfront costs, cheaper filters, or needed fewer filter changes—or some combination of those. Interestingly, some of the top-performing air purifiers might rank lower on this list because they use more electricity or rely on true HEPA filters, which can be significantly more expensive.

How to Choose The Best Air Purifier

We have provided four important considerations to help guide your next air purifier purchase based on size, pollutants, noise, and energy efficiency.

How Big is Your Desired Area?

Air purifiers come in a variety of different sizes, ranging from small portable applications to large-scale purifiers capable of covering multiple rooms. When looking at air purifiers it's important to consider your desired coverage area and the amount of space you're willing to dedicate to an air purifier.

What Pollutants Are You Targeting?

The filter type in your air purifier plays an essential role in the type of pollutants captured and the effectiveness of each type. True HEPA filters are rated to capture 99.7% of particles as small as 0.3 microns. While some filters will be labeled as HEPA-like or HEPA-type they have not been fully certified up to HEPA standard but can still provide adequate air purification. It's also worth considering the cost of true HEPA filters since they can be quite pricey. Carbon filters are another filter type often used in conjunction with HEPA filters to capture odors and chemicals but do not capture particles well. When identifying the filter type, it's important to consider replacement intervals and the costs associated with doing so.

How Important is Noise Level?

Since air purifiers are often used in home spaces such as offices or bedrooms, it is important to consider the amount of noise you're comfortable with. To start, identifying the decibel rating is an easy way to identify the level of noise. Placement of your purifier can also change the noise level such as in the corner of a room vs in the middle. Lastly, air purifiers often come with multiple operating speeds and can vary in noise depending on the setting.

How Often Will it Run?

If you plan on running your air purifier for extended periods, it's important to consider the energy efficiency and costs associated with running it. Attributes such as being Energy Star certified by the Environmental Protection Agency are one way to ensure your purifier has met efficiency requirement standards. We have also provided lifetime costs associated with each purifier to give you an idea of the cost of running your machine and replacing filters regularly over a five-year lifespan.

Related: Are HEPA Air Purifiers Effective Against COVID-19 Coronavirus?

Conclusion

Whether you live in the wildland urban interface, city, or somewhere in between, air purifiers will improve the air in the room where they are operating. These machines are easy to use, fairly inexpensive to operate, and have real and immediate benefits to respiratory health and peace of mind. The above review looks at all aspects of these machines and rates their performance so that you can pick a device quickly and accurately. With the information provided above, you can breathe easy knowing that you have selected the right machine for your home or office needs and budget.