Air Purifiers
January 9, 2022

The 5 Best Coway Air Purifiers in 2022

Coway air purifiers are great for purifying air at home or in the office.

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Our Top 5 Picks

roman peysakhovich
About Your Guide

Roman Peysakhovich

CEO and educator at Onedesk. Roman has over 10 years of experience as a cleaning business owner. When not operating his cleaning business, he's researching and reviewing the household products to help consumers make the best purchase.

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Choose the best Coway air purifier quickly in our review.

Keeping the air in your home pure is essential to your family's health.

They could be breathing toxic fumes and suffering from allergies needlessly. An air purifier can remove those pollutants from your home. Coway air purifiers are great for purifying air at home or in the office.

Read our review for the best air purifiers made by Coway.

  1. Coway AP-1512HH White HEPA Air Purifier
  2. Coway Airmega 300 Smart Air Purifier
  3. Coway Airmega 400 Graphite/Silver Smart Air Purifier
  4. Coway Airmega 150 True HEPA Air Purifier
  5. Coway Tower Mighty Air Purifier With HEPA Filter
Our Top 5 Picks (Comparison)
  • Best Coway HEPA Air Purifier
  • Coway
  • Best Coway Smart Air Purifier
  • Coway
  • Best Coway Air Purifier With Durable Design
  • Coway
  • Best Affordable Coway Air Purifier
  • Coway
  • Best Coway Tower Air Purifier
  • Coway

Coway AP-1512HH White HEPA Air Purifier

Weight: 12.76 pounds
Rating: 4.5/5
Dimensions: 9.6 x 16.8 x 18.3 inches


  • Filter replacement indicator
  • Reduces ions in the air
  • Timer capabilities


  • Fans may break

A HEPA filter is an effective type of filter that traps particulates in the air. The Coway AP-1512HH White HEPA Air Purifier has a fantastic HEPA filter that can purify the air in your home.

This air purifier is designed for rooms up to 361 square feet. The CADR is split into the type of particulars the filter is purifying. For dust, the CADR is 246. For pollen, the CADR is 240. This filter can also help trap smoke. It has a CADR of 233 for smoke.

This is an effective air purifier because it actually contains four different filter systems that all work together. There's a pre-filter and a deodorization filter initially. This helps removes any odors and initial particulars, making your air smell cleaner.

The air is then passed through a HEPA filter and the vital ion filter. At this stage, any other particulates are caught or destroyed. The vital ion filter does need to be manually turned on or off.

The filters are able to destroy or remove 99.97% of particulates in the air. It's able to catch particulates that are only .3 microns in size.

One of the best features of this air purifier is its ability to tell you if the air quality in your home is clean or not.

This makes it ideal for those who don't want to run their air purifier full-time. The LED lights will inform you whether or not the air is pure. If not, then you turn it on until it is. Then you can turn it off and save some money.

It also informs you of the lifespan of your filter. You'll inevitably need to change the filter out in order to keep the purifier working properly. The unit will tell you when the filter is due for a change.

You can also schedule the air purifier according to a timer. It has several settings that enable you to run it for a few hours at a time. This allows you to keep the air clear while also saving money on energy.

It has a built-in sensor that will help it switch between three different purifying modes. When there's a lot of pollution in the air, then it will switch to the highest mode to clean the air faster. As the pollution decreases, the fan speed will also decrease. Once it doesn't detect any pollution in the air, then it will shut itself off according to its Eco Mode.

It uses 77W of power and has a noise level of 24.4 decibels on its low setting and 53.8 on its high setting. That makes it great for bedtime use if you want to use it on the low setting. Otherwise, you may want to consider keeping it out in the living room or kitchen.

What Reviewers Say

  • "This unit is great except that it has plastic covers on its filters that need to be removed first. Not doing so can severely damage the unit."
  • "For its size, the purifier does a great job of clearing the air. It's also significantly quieter than other models I've used."
  • "This purifier is very sensitive. It even turns on when I cook food. The cost of upkeep is affordable because the filters are relatively cheap and don't need to be changed that often."

Coway Airmega 300 Smart Air Purifier

Weight: 21.4 pounds
Rating: 4.5/5
Dimensions: 13.58 x 20.94 x 13.58 inches


  • Informs you of state of various filters
  • Activated carbon filter
  • Up to 1,256 square feet of coverage


  • Filters may be difficult to change

Smart air purifiers can make running an air purifier more efficient. The Coway Airmega 300 Smart Air Purifier offers a ton of features that can quickly purify your home.

One of the best aspects of this air purifier is that it can purify large areas. It's rated to be able to purify rooms of up to 1,256 square feet in size. That can cover most large living rooms, if not an entire home or apartment.

It uses two powerful filters to purify the air. There's a HEPA filter that can capture particulates up to .3 microns in size.

The HEPA filter is able to catch 99% of particulates that pass through it. It also uses an activated carbon filter that can help remove certain organic compounds in the air. That means it can filter out some gases to make your home smell better.

It even has two pre-filters that can help remove most of the particulates. These filters are permanent and can also be removed and rinsed to keep using them.

You will, however, need to replace the HEPA filter over time. To help you know when you need to replace the filters, the purifier will tell you. It informs you when the HEPA filter needs to be replaced and when you need to wash the pre-filters.

It also tells you how dirty your air is. That sensor works with its smart mode to deliver an efficient purifying process.

You can also set it to a few other modes based on the kind of purifying that you need. This also affects its noise level. The lower setting is quiet. Its highest setting has a decibel rating of 43.2.

You'll find the interface for determining your air quality at the front of the purifier. Its circle of lights will change color based on the quality of air. Blue is when your air is at its healthiest.

This is when the unit will power down from its purification modes. Green is also relatively healthy, although it does indicate that there are some impurities in the air.

Yellow means that there are several particulates in the air. It's considered unhealthy. The final reading is red. This is when the air is filled with pollution. The purifier will want to be put in its highest setting to remove the impurities as quickly as possible.

Its smart technology allows the purifier to detect when it shifts from one purity stage to another. Placing it in Eco mode, for example, ensures that the purifier only operates when the air quality is poor.

You can also set this purifier on a timer. It can run for an hour, 2 hours, 4 hours, and 8 hours. This unit has an Energy Star certification.

What Reviewers Say

  • "Smoke is always a big problem in our area. This air purifier was able to remove the smoke odor from the house, making it much more livable. It's changed our lives."
  • "I've been using this purifier 24/7 since buying it, and it's made my respiratory problems significantly better. Unfortunately, it eventually quit. I called customer service, and they were able to help me out without any hassle."  
  • "This purifier is easy to set up. I was able to do it in 5 minutes. It's also easy to reach the filters for when you need to replace them."

Coway Airmega 400 Graphite/Silver Smart Air Purifier

Weight: 24.7 pounds
Rating: 4.5/5
Dimensions: 14.8 x 14.8 x 22.8 inches


  • Multiple filters for extra purification
  • Up to 1,560 square feet of coverage
  • Turns off when no pollution is detected


  • May give off odor

If you want your air purifier to last for years, then you may want to consider the Coway Airmega 400 Graphite/Silver Smart Air Purifier. This heavy-duty air purifier can purify rooms as large as 1,560 square feet.

It comes with several filters to help remove particulates and gases from the air of your home. Its activated carbon filter removes organic compounds that cause odors in your home.

The HEPA filter removes dust, pollen, and other pollutants no smaller than .3 microns in size. In addition, it has two other filters that act as pre-filters. These are responsible for removing larger debris, hair, and pet hair from the air.

The indicators are easy to read and understand. The circle glowing light on the purifier is what tells you the state of the air in your home. Blue and green are healthy colors.

If your unit starts to show a yellow light, then it means the air is becoming more polluted. If you see a red light, then it's time to let your purifier do its job. Your air is very unhealthy.

The noise level ranges from 22 and 55 decibels based on the fan mode that you're using.

There are five different fan modes. Smart, low, sleep, medium, and high. The smart mode will detect air pollution in the air and change its fan speed accordingly. It will also shut off when it doesn't detect air pollution. This ensures you save money on your energy bill.

Its sleep mode is also ideal for bedtime use. It senses when the room is dark. After three minutes have passed, if the air is clear, then it will shut itself off. This is its sleep mode.

You can also choose to run your air purifier for a set number of hours. It's Energy Star certified and draws 65 Watts of power.

What Reviewers Say

  • "The noise level on this purifier can get a little noisy. However, it's basically cleared up my allergies. Even being allergic to dogs, this purifier allows me to own one without worries."
  • "This unit is expensive, but it's also worth the quality. You get a sturdy purifier out of it, and the parts are high-quality, too. It's sure to last for some time."
  • "As someone who has to constantly rely on allergy pills after being outside, this purifier has changed my life. Even after being outside, I don't need to take an allergy pill. This unit is a powerhouse and extremely effective."

Coway Airmega 150 True HEPA Air Purifier

Weight: 15.42 pounds
Rating: 4.5/5
Dimensions: 6.5 x 13.31 x 18 inches


  • 214 square feet of coverage
  • Cartridge filters are easy to replace
  • Various colors from which to choose


  • Runs a little noisy

Coway air purifiers can be on the expensive side. Luckily, the Coway Airmega 150 True HEPA Air Purifier is an affordable air purifier that's just as high-quality and effective as the other air purifiers.

This purifier is primarily for smaller rooms as it's rated for room sizes 214 square feet and lower. That makes it an ideal choice for bedrooms, craft rooms, or other small, but heavily-trafficked, areas.

This unit has a 3-filter process. Air pollutants first pass through the pre-filters. These remove larger pollutants like hair.

Then it goes through an activated carbon filter to remove odors. Finally, it goes through the HEPA filter to trap extremely small particulates. This process can remove up to 99.97% of air pollutants.

The washable pre-filter is best used for hair, large particulates like dust, and even just unhealthy air.

The deodorization filter removes certain gases that are created when you cook, smoke, from your pets, and other toxins and gases. Finally, the Green True HEPA Filter removes small particulates and gases. These may be germs, extremely small particles of dust, pollen, and other allergens.

You can also be informed as to the state of the air quality in your home. This unit comes with a pollution indicator. It will tell you whether or not your air is polluted. Then you can switch through its various fan modes to find the one that you need to clean your home quickly.

To tell you about the air quality of your home, the purifier uses four colors. Blue means that the air is good. Green means that the air is moderate. It's still good air, but it's starting to fill with pollutants.

Yellow means that the air is unhealthy. Finally, if you see a red light, then it indicates that your air is extremely unhealthy. It likely has a lot of pollutants or even toxins.

This particular device was awarded three times at the international design awards. Its clean, simple, and compact design makes it blend in with most homes. It can be easily tucked away but looks great out in the open, too.

You'll also be notified when your filters need to be cleaned or replaced. You won't have to keep track of it yourself.

This air purifier is built with energy efficiency in mind. When it doesn't detect air pollution for 30 minutes, then it immediately either shuts off or goes into low mode. This can save you money in the long run.

One of the fun aspects of this air purifier is that you can actually get it in different colors. If you want a specific theme in your room, then you can choose a color for your air purifier that best matches it.

You can enjoy all of these features at a great price.

What Reviewers Say

  • "This purifier does a great job at removing odor and air pollution. It senses when air pollution increases, like when you ruffle the bed's covers, and adjusts itself accordingly."
  • "Replacing the filters is easy. You just need to remove the tabs to access the filter. This unit is quiet and works well."
  • "The footprint is smaller which makes it ideal for bedrooms and small spaces. The LED interface is easy to understand and use."

Coway Tower Mighty Air Purifier With HEPA Filter

Weight: 13.9 pounds
Rating: 4.5/5
Dimensions: 10.7 x 10.5 x 32.7 inches


  • Purifiers up to 330 square feet
  • Senses air pollution in the air
  • Customizable fan and schedule system


  • Bright lights make it difficult to use in the bedroom

Tower air purifiers have the added benefit of being able to fit into rooms easier.

Their slimmer design makes them ideal for rooms that already crowded. The Coway Tower Mighty Air Purifier With HEPA Filter is a great option if you want a tower air purifier. This tower can purify rooms of up to 330 square feet in size.

It has a CADR rating for dust of 235. Its CADR rating for pollen is 262. Its CADR rating for smoke is 213. That makes it a great unit for smaller rooms that sees both particulate and gas pollutants.

This unit also has a powerful 4-filter system. It has a pre-filter that removes things like hair and large particulates. Then it has a deodorization filter which is an activated carbon filter.

This makes your room smell cleaner and can remove the smell of smoke from the air.

he next filter is the HEPA filter which then traps smaller particulates. It can capture pollutants down to .3 microns in size. Finally, it uses a vital ion filter to further remove organic compounds in the air.

These four filters give the air purifier the ability to clear up to 97% of pollutants that pass through it.

Taking care of the purifier is relatively easy. It informs you when a filter is in need of cleaning or replacing. The pre-filter can be cleaned and replaced. The other filters will need to be replaced over time.

This purifier will keep you informed about the purity of your air. Its LED interface tells you the state of the purity of your air. You can also use this interface to schedule cleaning times.

You're able to set the purifier to clean for 1 hour, 4 hours, 8 hours, or 12 hours. You can have it running while you're at home or when you're away from home to come back to a clean and fresh atmosphere.

It also has several fan modes. You can run the purifier at low, high, or medium speed. The higher the setting, the faster the room will be cleaned.

You can also put it on auto mode. In this mode, the purifier will choose the best mode to clean your room efficiently. After 30 minutes, if there's no more air pollution, then the unit will shut itself off, saving you money on energy.

The noise level on this purifier is also low. Its lowest setting has a decibel rating of 21 while its highest setting has a rating of 52 decibels.

It doesn't draw too much power from your home. It consumes around 49.3 Watts. Finally, this unit is slim and compact. It can fit easily within most homes.

What Reviewers Say

  • "Three of these units can replace a single, expensive, unit. It saves space, money, and still provides high-quality purification."
  • "This unit is affordable and the cost of owning it after the initial purchase is also affordable. My allergies have cleared because of this purifier."
  • "I find the quite noise that this purifier makes to be relaxing and it helps me fall asleep. We purchased one for my son, and it cleared up the odors quickly."
Our Top 5 Picks (Comparison)
  • Best Coway HEPA Air Purifier
  • Coway
  • Best Coway Smart Air Purifier
  • Coway
  • Best Coway Air Purifier With Durable Design
  • Coway
  • Best Affordable Coway Air Purifier
  • Coway
  • Best Coway Tower Air Purifier
  • Coway

Frequently Asked Questions

Are Coway air purifiers good?

Yes, Coway air purifiers are great for anyone who wants to purify their air indoors. Compared to Blueair air purifiers, Coway air purifiers tend to be less expensive.

How long does a Coway air purifier last?

Coway air purifiers typically last users 12 months under normal day-to-day usage.

Are Coway air purifiers better than Blueair air purifiers?

Coway and Blueair air purifiers have a few differences. Blueair air purifiers typically work better to reduce allergens in your home, while Coway air purifiers have more advanced features like air quality monitoring.

Does Coway sell HEPA air purifiers?

Yes, Coway sells several air purifiers designed with powerful HEPA filters.

Where should I place my Coway air purifier?

Try to place your Coway air purifier at least 17-20 inches from the wall and any furniture. Ideally, place your air purifier near the middle of the room you’re in.