In Auto (similar to medium; the Air does not contain a particle counter to adjust to air conditions, but instead asks you to enter the approximate size of your room, after which the machine chooses a fan speed that Molekule deems appropriate), the air performed worse, reducing particles by 0.3 microns at only 18.0% (ambient) and 26.4% (clean). In Silent, it performed even worse, reducing 0.3 micron particles by 6.5% (ambient) and 7.2% (clean). And in Dark plus Auto, with its primary PECO purification system turned off and its fan at the equivalent of a medium setting, it reduced them by 21.3% (ambient) and 18.0% (clean). Interestingly, those numbers closely reflect our results in automatic configuration with the PECO system activated, suggesting the possibility that the Molekule Air depends mainly on its physical prefilter, not its patented PECO mechanism, to remove particles.
This Levoit air purifier is a Good Housekeeping seal holder, thanks to its combination of value, performance and intelligent design. In particular, the unit's three-stage filtration, which includes a true HEPA filter, helps capture even the smallest airborne contaminants in rooms up to approximately 400 square feet. A built-in precision laser sensor accurately monitors particles in the room and automatically adjusts fan speeds as needed. The purifier is also incredibly quiet, it works at only 24 dB, which you will appreciate if it is placed in your bedroom.
One of our staff evaluators has been operating the unit for several months at home and says that the light hum is quite quiet at night. Then there are intelligent capabilities, including the Levoit app, which allows you to monitor air quality in real time, view filter life, and set schedules. After careful testing and consideration, these are the best air purifier options according to our research. Any of the air purifiers below should improve indoor air quality, filter out smoke and particles in the air, and at the same time provide fresh air.
While ion filtration technology is not a big advantage, it also doesn't produce significant ozone, as tested by the California EPA. If you want an air purifier for a medium-sized room, the Coway hepa air purifier is one of the best air purifiers with one of the most adventurous looks. The Blueair Blue Pure 411 is a simple and straightforward purifier with a smart design and a good investment. You get particulate and carbon filtration (activated carbon filter removes odors, pet dander, airborne allergens, and airborne gaseous contaminants) that will work well in a 160 square foot room, making it the best overall air purifier for rooms small.
Some devices, such as the Sharp air purifier, don't even offer as much cleaning power at almost double the price. Okay, if you have the money and want a super-powered air purifier, or if you prefer a purifier to cover your entire house than buy one for each room, the Coway Airmega 400 could be the best air purifier for you. This thing costs a dime, but you get 1,560 square foot air cleaning coverage. It's also important to note that many of the best air purifier models I tested have been going in and out of stock in recent months, given the demand for such devices during the pandemic and in the midst of wildfires.
While that could mean that some of the above options are out of stock, we've decided to keep our recommendations (and the reasons behind them) published, so you can use them and find the best product for you. However, for now, our recommendations for the best air purifier options are based on the included prices, and we recommend avoiding sellers offering the same devices for significantly different prices. We will update this list regularly as we review new products. For the above devices, I mainly considered power for price (i.e., the higher the CADR and the lower the price, the better).
Secondly, I looked at the additional cleaning modes, the usefulness of the controls, the overall design and the noise level. The best air purifier looks elegant enough to fit the most modern decor, can work as desired with minimal manipulation, and can clean the air thoroughly and quietly. All of the air purifiers in this best comparison have fantastic purification performance, but they vary in coverage area. Some homes require thousands of square feet of coverage, other times you may only need coverage for a single room.
For those worried about noise, the Oransi mod has a decibel range of 19-45 dB. If you're worried about sound, our tests showed that the MA-112 has a decibel range of 21-48 dB. In our noise tests, we found that the A3 has a noise range of 19-52 dB. Levoit LV-H134 covers up to 710 square feet.
With a CADR of 312 CFM. This can generate some noise, and we found that the decibel range is between 18 and 45 dB. Pure 211+ has a good amount of suction power with 350 CFM CADR. If you are concerned about noise, we found that the decibel range is between 22 and 45 dB.
Each device has several modes to choose from and we found that its sound range is between 19-46 dB. It has a CADR of 243 CFM and generates noise in the 21-48 dB range. The Coway 1512 has a coverage area of 360 m2.Ft. This suction level can generate noise in the range of 20-54 dB.
The 300S uses a HEPA filter with an activated carbon layer that is easy to replace as needed. With a CADR of 141 CFM. This is a solid amount of suction for this price and can generate a decent amount of noise. Our tests showed that the decibel range is between 17 and 41 decibels.
After taking a baseline measurement, we let the air purifier work at the maximum setting for 1 hour. When the hour has passed, we take another measurement of the air quality in the room and compare it with the reference measurement. Finally, many air purifiers offer a range of convenience features that improve usability. Having these characteristics can be good, but in most cases, they don't affect air purification performance.
As you read our guide, you can notice that most of the air purifiers on the list contain something called a high-efficiency particulate absorption (HEPA) filter. HEPA filters can remove 99.97% of air pollutants 0.3 microns in size, making them ideal for removing most indoor air pollutants. For context, most dust particles have a size of around five microns, and pollen has a huge size of 10 to 1000 microns, all of which a HEPA filter is capable of trapping without any problem. Perry points out that the most effective air purifiers will remove different types of particles from the air, but they can never get it 100% “pure”.
The idea of an air purifier is that it is designed to remove impurities from your home such as dust, odors, pet dander, smoke, bacteria and viruses, he says. Indoor air is much higher than outdoor air and the goal is for the air purifier to neutralize these unpleasant things in your home. It works by having a fan that draws air inside the house into filters that remove impurities before returning clean air to the room. However, it is important to note that it is impossible to remove all particles that can live on walls, carpets, bedding and hard surfaces.
The Levoit 400S performed best in removing airborne particles in our home tests, capturing at least 99.5% and up to 100% of particles during testing. The Coway-AP-1512HH air cleaner also benefits from a built-in particle sensor. This means you can get an idea of the air quality in your home with the color coding system on top of the device. It will show a blue light when the air is clean, purple to indicate pollution and red for high pollution.
Another smart feature of the Coway AP-1512HH are sensors that can adjust fan speed to keep the air clean, so you don't have to alter settings. We especially liked the Eco Mode of the Coway AP-512HH, which worked well to turn off the air purifier when air pollution was low, saving energy and money. Our tester also found that the automatic mode worked well to toggle between fan settings based on indoor air quality. The Coway AP-1512HH is an air purifier suitable for small room spaces up to 361 square feet, making it suitable for smaller spaces and bedrooms.
If you need something for a larger room, then you might want to look elsewhere, considering that this is a fantastic option for smaller spaces. We burned a series of matches to check how well the purifier captures the particles. At a level 6 setting, we found that the purifier removed 98% of particles smaller than 0.3 microns, 72% of particles smaller than 2.5 microns, and 73% of particles smaller than 10 microns. At a level 10 setting, we found that the purifier captured 95% of particles smaller than 0.3 microns, 96% of particles smaller than 2.5 microns, and nearly 100% of particles smaller than 10 microns.
Our home tests found that the Blue Pure 221 was consistently better than all the other air purifiers we tested. Despite its lack of Smart technology, it outperformed purifiers at almost double the price. We burned a series of matches to check how well the purifier absorbed the particles. In a Level 2 setting, we found that the purifier absorbed 99.7% of particles smaller than 0.3 microns, 99.5% of particles smaller than 2.5 microns, and 100% of particles smaller than 10 microns.
In a Level 3 setting, we found that the purifier absorbed 99.9% of particles smaller than 0.3 microns, 99.6% of particles smaller than 2.5 microns, and 100% of particles smaller than 10 microns. Small enough for any desk or shelf, the Levoit H132's compact size and low price make it the ideal air purifier for someone who wants to try their first air purifier at home. If you have a small apartment, or just want to use an air purifier only in one room, this could be the product for you. Unfortunately, the Levoit H132 did not live up to expectations when it came to testing how well it absorbed particles, steadily falling below the 99.97% expected of a device with a HEPA H13 filter.
However, running the purifier for longer periods can produce better results. The Levoit H132 may not have all the details of a smart air purifier, but its affordability and compact size make it the ideal beginner's indoor air purifier that works well in small to medium sized rooms. Lightweight and compact, the KOIOS EPI810 is the smallest air purifier we've ever reviewed. It will sit comfortably on any desk or office shelf and its 2.5 lb weight makes it light enough to take on the road.
Our at-home incense smoke test evaluated how well the purifier worked after burning five incense cones simultaneously and found mixed results. While the KOIOS EPI810 absorbed an impressive 99% of particles measuring 10 microns, it only absorbed 52% of particles smaller than 2.5 microns. While it doesn't have the surprise factor when it comes to the design, or sophistication of a smart, connected air purifier, the KOIOS EPI810 can work well if you want something easy to operate. However, a louder, louder fit and mediocre performance in our at-home tests may discourage some users.
It's not yet clear if air purifiers are doing anything to prevent the spread of COVID-19 indoors. The Center for Disease Control (CDC) advises that you open doors and windows (opens in a new tab) to maintain good indoor airflow if the weather permits, of course. HEPA filters, found in some air purifiers, have been found to remove some viruses from the air. Shim says it's important to distinguish between HEPA and True hepa air purifiers to ensure your needs are met.
On the other hand, a purifier with a HEPA-type filter is capable of capturing 99 percent of particles of 2 microns or more, such as pet dander and dust. While these particles are too small for the human eye to see, Shim warns: “They are large enough to penetrate the lungs and cause problematic reactions. This portable air purifier is ideal for your desk or small room. Can cover up to 150 square feet of space.
The Max is Energy Star certified for efficiency and also has a super quiet motor. According to the company, the air purifier's four fan speeds never exceed the 53 dB noise level, making it one of the quietest units on the market. The company claims that AirSoap's advanced purification system, which uses a high-energy plasma field to trap and ionize air particles flowing through, can trap and kill even the smallest viruses, up to 14.6 nanometers (most disposable HEPA filters can only filter up to 300 nanometers). And while AirSoap is not marketed as a device that kills COVID, the company says the air purifier is capable of capturing extremely small viruses such as coronaviruses and influenza, which are generally “too small for traditional filters to capture.”.
For effective and gentle cleaning, you'll want to choose the Samsung Bespoke Cube. Backed by Samsung's years of research in both technology and design, the Cube uses a five-stage filtration process with 360-degree air suction to reduce and eliminate irritants such as pollen and smoke, while removing up to 99.97% of ultrafine dust. It also comes with its own air quality sensor, a microfiber travel bag and a small stand to keep it upright. This feature allows you to set it to an automatic mode, in which the machine adjusts its speed based on the air quality in the room.
The A3 uses 6 filters in total to clean the surrounding air, the most notable being the BIOGS HEPA filter, the carbon filter, a custom filter and the negative ion generator. Not only does an air purifier target harmful germs and bacteria, it can also be used to help reduce odors in the home and to filter smoke. But a good air purifier can reduce some of those pollutants, as well as pollen, and help you breathe better. Fridababy, a company known for its ingenious solutions to everyday parenting problems, recently introduced an air purifier for small rooms designed for spaces up to 150 square feet, such as a baby's room.
This places the particle counter out of the air flow of the purifiers, eliminating the possibility of an artificially high measurement of its performance and ensuring that the readings give an accurate impression of the purification of the entire purifier room. The air quality readings you take are stored and can be viewed in the app, giving you a long-term picture of your home's air quality. An air purifier can help reduce these levels significantly, but not completely eradicate them, helping you and those around you breathe better. Dolphin Hammes recommends the IQAir Atem desktop air purifier, which uses the company's exclusive HyperHEPA filters to remove ultra-fine particles down to 0.003 microns.
This seems a bit overwhelming, so air purifiers are designed to help filter the air and leave it cleaner and less full of potential allergens and irritants. The Coway AP 1512 is known as an exceptional air purifier due to its excellent value for money and high quality performance. That means being outdoors and, ideally, in places where there is a constant flow of air to help with cycling, which probably means near doors or vents. In general, the Förnuftig can't go head-to-head with the best air purifiers, but at these prices, it may not be necessary.