Best Air Purifier you can Buy in 2021

With a dedicated years of research on 42 different air purifiers,
The Coway AP-1512HH Mighty comes out best amongst them and is qualified as the perfect air purifier. It’s the ability to stay dark and quiet enough in bedrooms, clean up the air in large rooms, and the fact that its price will always make you want to have many in your home make it just outstanding.

Coway AP-1512HH Mighty (Our Pick, Winner)

The Coway AP-1512HH Mighty impressively cost about $470 over five years (which also accounts for the electricity and filter replacement). Even when the filters are used continuously, the Mighty still works just as new. When tested in a bedroom of 200-square-foot, 1,600-cubic-foot, it was able to reduce the smoke pollution present to as much as 99.0%. We also did some tests in a large Los Angeles conference room (roughly 10,000 cubic feet, which is way beyond the Coway Mighty’s Specs) during a smoke situation; we found out that it reduced the pollution by nearly 75% in just an hour. It’s portable form and ability to turn off the display light, and noiseless operation makes it just perfect for bedrooms.

Coway Airmega 200M (Our 2nd Pick)

The Coway Airmega 200M functions the same way as the AP-1512HH Mighty and is even produced by the same company. We highly recommend it. The only physical difference is its square grille instead of the round one in the Mighty. If you can find it at a better cost and also love its looks, we recommend that you go for it.

With its ability to capture 99.9% smoke particulates at high settings and 97.2% at medium settings in just 30 minutes in rooms, the Winix 5500-2 stands a chance with the Coway AP-1512HH. We especially love the fact that it emits the sound of 40 decibels at a medium setting. Still, it lacks a display shut-off feature, and higher energy consumption makes it less preferable to the Coway.

Winix AM90 (Contemporary Looks)

The Winix AM90 comes with a stylish design and also has WI-FI capability with a simple app. It’s more expensive than it’s identical, the Winix AM80 which only comes in grey. But AM90 is only accessible, as of January 2021, directly from Winix, where it costs $181. Meanwhile, it delivers the same operations and performance as the 5500-2 with the same HEPA filter. However, the Coway is still more preferable to both the AM80 and AM90.

BlueAir Blue Pure 311 Auto (Top Performance)

We also recommend the Blueair Blue Pure 311 Auto. It gives the same operation as the Coway AP-1512HH. Still, you will surely love its exceptional auto function feature, which gives it the ability to monitor the air’s nature in your room and adjust fan velocity accordingly. Also, it’s quiet performance, great energy efficiency, and washable cover all add to its quality.

Although, there are minor setbacks as the bright blue LED light indicator only turns off when it’s on its lowest settings, and another is that it is recommended that you change the filters every six months, which makes the annual cost equals up to $80. That’s more than $50 the Coway and the Winix model cost.

Blueair Blue Pure 211+ (A Spherical Player for Spacious Rooms)

If you want an air purifier that will clean up large spaces measuring up to 650 Square feet, the Blueair Blue Pure 211+ is just what you are looking for. It can purify more air per hour, even more than the Coway Mighty. With a quiet operation, attractive look, and the ability to quickly retain low particulate levels in large rooms, it’s just remarkable. The upfront price and average running cost up to $1,150 over five years, which is much more than the Coway Mighty, and unless you want to clean large spaces, the more affordable Coway is still a better option to purchase.

Levoit Core 300 (Runner Up)

Well, probably you want a small, compact air purifier with a display shutoff feature, one quiet enough to be in bedrooms and spaces around 200 Square feet; the Levoit Core 300 is just perfect for you. It’s attractive and comes with a budget-friendly price. At high settings, it reduced the particulate by 97% and 92% at medium settings in just 30minutes in our test.

Even though it’s inexpensive to purchase, it values up to about $500 over five years, accounting for both the energy and filter replacement. This makes it more costly than Coway or even the Blue Pure 211+.

Austin Air HealthMate HM400 (Great Aswell)

The Austin Air HealthMate HM400 is just the perfect pick if you want to get rid of odors and volatile chemicals, also pollen. Its filters(both VOC and HEPA) did outstandingly remove the volatile and particulates in the air when tested with other purifiers.

It amounts to up to $600 to purchase and another estimate of $600 accounting for the electricity cost for over five years, which surely makes it expensive. The Coway is still more recommended as you can get three of them instead of The Austin Air HealthMate HM400 and still covers more rooms.

The Coway AP-1512HH Mighty has proven to be the perfect and 2021 best air purifier and becomes our pick.

Coway provides pretty much everything required by users. It’s the ability to work and function just as new even when used over one year, makes it unique. When tested, in just 30 minutes, Coway gives a 99.1% removal of particulates in the air. The Coway Mighty is compact enough, making it take less space in rooms; its display shut off is just perfect for bedrooms as that makes it dark enough to sleep at night.

Taking the electricity cost value at New York’s rates (which is about half above the national standard), it costs up to $470 over five years to run, including replacing the filter and operating at medium settings.

Also, the Coway can reduce particulate pollution by about 100% at the high setting and then maintain it perfectly at its medium setting.

We wanted to see how far the filters can go and still be efficient. We ran it with the filter used continuously for 24/7 over one year. We got at high setting 99.6% reduction and 89.4% reduction of air pollution at medium setting in just 30 minutes.

One thing that reduces air purifier’s quality is the performance of both the prefilter and the HEPA filter; the prefilter traps large particles in the air like lint and pet hair, which can, in turn, clog the HEPA filter which therefore decreases its efficiency. But the perfect tight fit of its HEPA filter and prefilter gives the Coway Mighty an excellent operation as the HEPA filter is sealed tightly to the plastic housing of the Mighty’s frame, which prevents air from escaping the filter and ensures all air drawn gets through the HEPA filter.

The Coway Mighty also gives an amazing 39 decibel at a distance of 6 feet ( sounds like a whisper), making it easy to watch TV or sleep near it.

Finally, compared to other purifiers with the same operations, it is more compact, just 18 inches tall, with a 10inch and 17 inches wide (shape and size of almost like that of a large beach tote).

Also, its running costs are the lowest you can get for an air purifier of its kind.

When we compared it with a competitor, the GermGuardian AC5900WCA, which has the same specs, the running cost of 5 years amounts to about $900, including the cost of electricity and filter replacement. That is nearly the total cost of running two Coway over five years.

There have been some negative reviews given by customers on retail sites, including Amazon, about some issues encountered with their Coways.

One is a sharp odor produced by newly replaced filters. When we reached out to Coway, the company could trace the odor to wildfire smoke, which had made its way to where these filters were being stored, causing them to pick up the smell. Coway company assures that free replacement will be sent, but due to customers’ high demand, its customer service response might be a little bit slower than normal. Also, there are complaints about fan imbalance, which makes the entire body shake uncontrollably. The company has also assured us that they are working on rectifying the issue.

We are aware that anyone, if not everyone, will most likely start using air purifiers without unwrapping the wrapped filters first. This mistake is so frequent that we deem it fit to point it out and make it clear that it’s recommended that filters are unwrapped first (even though almost all air purifiers come with a sticker or warning stating that wrappers are removed) before using.

One more thing, we recommend that the ionizing function added to the HEPA filtration (like many other air purifiers) of the Coway should be left off. It doesn’t help but consume additional electrical power, which is certainly not what you want.

Coway Airmega 200M

Our second pick happens to be just as identical as the coway mighty, the Coway Airmega 200M. They are so physically similar that you can interchange their faceplate and filters, and the same company also makes them.

They both have pretty much the same features ranging from the display shut off and quiet operation for bedroom use to low electricity consumption. The Airmega possesses a significantly more powerful motor, which gives it a better performance during our tests. With new filters, it reduced particulate by 99.4%( Mighty with 98.9%) and 99.1% on old filters (Mighty with 98.9%).

Both designs are identical; only the square grille present in Airmega instead of a round aperture in Mighty makes the difference.

The Airmega will surely give you the best, just as the Mighty. But it’s our second pick because of its price, so it’s up to you to decide which one to go for, we highly recommend both machines equally.

Winix 5500-2 (Outstanding Performance, Monstrousness Design)

Another great air purifier you could opt for is the Winix 5500-2. Besides its high cost of running due to high electric power consumption, it only shut off its display when it’s on its lowest settings, and it is not that attractive as the Coway Mighty. It could have been our first pick. It performed just about the same as the Mighty on the clean air delivery rate (CADR) and the air changes per hour (ACH 5.1) when tested as it decreased (using brand new filter) 99.9% of 0.3-micro of smoke particles on high settings.

While on medium settings, it removed 97.3%, that’s more than the Coway, which is 99.6% and 89.2% on either new or old filters.

We choose the Coway Mighty as our pick because the Winix 5500-2, just like any highly efficient air purifier, reduces particulate in the air in only a short period. Still, the Coway, in our test, reduced heavy pollution by 99.9% in less than one hour and was able to keep it there on medium setting for 2 hours subsequently. We much prefer long-duration performance.

The Winix stands a chance due to its efficiency but the lack of certain desirable and important features like the display shut off mode. It only automatically shuts off when it’s on sleep mode- it’s the lowest setting.

We prefer that the recommended machine have to choose when to shut the display off on any setting you choose (preferably the medium settings).

Even though the filter replacement cost (about $50) and the noise produced (40 decibels on medium setting) are seemingly similar, the Winix draws more electric power than the Coway. Consuming up to 13 watts on a medium setting (which is beyond the recommended 8.1 watts on daily use) costs an extra of $50 when used 24/7 for a year at New York’s electricity rates.

The Winix also only comes in black and is larger physically than the Coway. We recommend that the PlasmaWave Tech feature that comes with the Winix 5500-2, like all other Winix, be turned off. Winix claims it can help to decrease airborne virus and bacteria, but we know that the HEPA filters already take out all these, and since it only adds more to the power consumption, we recommend that it be turned off.

You may also like to know that the Winix 5300-2 is an excellent alternative to the 5500-2. It has virtually the same performance, but it only lacks the remote control and only comes with three-month VOC filters instead of the 5500-2’s one-year VOC filters.

The Winix AM90, which only comes in one color, white, versus the 5500-2, is more attractive and more physically larger. It has identical performance as the 5500-2 with 99.8% reduction of 0.3micron, on high and 94.9% medium for 30 minutes versus 99.9% and 97.3%.

Its filter replacement also costs $43 annually, which is a bit lesser, and it is also as quiet as the 5500-2. It also gives the same results when compared to the Coway, just like the 5500-2.

It draws more current than the Coway consuming 13.1 watts vs. the 8.1 watts we recommended. It also comes with Wi-Fi connectivity and a simple app to remotely control and monitor the air-quality reading and its settings.

You can also go for the AM80 instead of AM90, but it lacks Wi-Fi connectivity and only comes in dark gray. It has a one year VOC filter, which is more than the AM90’s three-month filter.

It is only available as of January 2021 directly from Winix at $181. You can also consider it.

We will be conducting more long-term tests on both the Winix 5500-2 and the AM90.

BlueAir Blue Pure 311 Auto & 211+ (Uppermost Performance, Charming form)

The Blueair Blue Pure 311 Auto was able to reduce a huge load of 0.3-micron smoke particles by 99.9% in just 30minutes and 94.2% on medium setting even though it’s not using the HEPA filters but uses a tech that allows electrical charges to impart particles to make them stick to the filters. The tech is pretty awesome and efficient also, and it’s made by the same company that made our large-space pick( check below).

It can deliver up to, according to its CADR, 5.3 air change per hour( ACH), which makes it more than that of the Winix and about the same measurement as the Coway.

It is also unique as it only draws 5.9 watts on a medium setting and produces an incredible 33 decibels over 6feets, making it quiet enough (almost mute) on that setting. Its physical appearance is fantastic, with a fabric covering that can be laundered; it comes in gray color but can be purchased separately in different colors.

The Blue Pure 311 Auto can scan the air quality in rooms with its particle sensor and adjust its fan’s speed accordingly. You can also change the strings manually. Unlike the Coway Mighty, it doesn’t have the display shut off features, which can be a distraction in dark rooms. Meanwhile, Blueair recommends that the filter is changed every six months, which means you will be spending a total of $80 for a year.