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Coway Airmega 400 Smart Air Purifier Review

The AirMega AP-2015F 400 is one of the quietest, most powerful, and smartest air purifiers made for personal and home use on the market. It comes in a compact form that has an easy-to-use design that is unobtrusive and pleasing to the eye.

It’s a great piece of equipment for your air purification needs, with several features that help it stand out above the rest of the purifiers on the market. Its “smart” detection systems make purifying your air easy and economical, but you don’t have to take our word for it! Let’s take a look at its features, and you’ll understand how they’ll improve your life and the lives of your loved ones.

Coway Airmega 400 Smart Air Purifier Review

Check out the AirMega 400S to purify larger rooms.

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Smart functioning

If you have better things to be doing than manually adjusting the settings of air purifiers, you’ll be happy to hear that the AirMega has no such demand.

You can simply turn it on to “Smart Mode, ” and it’ll do the rest of the work for you. On Smart Mode, for example, it will automatically adjust the speed of the fan according to how polluted the air is.

Coway Airmega 400 Air Purifier
Coway Airmega 400

Within Smart Mode, “Eco” will make sure that you save on electricity by turning the fan off when the air quality has been good for at least 10 minutes. And “Sleep” will make the AirMega slow fan and become quieter when its light sensor detects that the room is in darkness, perfect for if you want to keep the air purifier working while you sleep.

It also has a filter life indicator – that means you’ll be able to see exactly how much your current filter is used up, and how much you have left before you have to change it.

This is different to other purifiers which will often simply show you a red light when the filter is used up, giving you no idea whether you need to change your filter as soon as possible, no idea how urgent the filter change is.

Airmega 400 Air Purifier Review
Coway Airmega 400


The AirMega has the option of setting a timer – you can choose for it to turn off after 1, 4, or 8 hours. This is a great feature in case you’re leaving the house and want to return to breathe fresh, clean air, but want to save on your energy bill, too.


This air purifier covers up to an area of 1,560 square feet, which is a large space. The smaller the space, of course, the faster it will purify the air.

Coway Airmega 400 Smart Air Purifier
Coway Airmega 400

Conclusion: Should I Buy the AirMega 400 Air Purifier?

The AirMega AP-2015F 400 is certainly a powerful piece of life improvement equipment, and you don’t have to spend your precious time on it – it’s smart programming will do everything for you. But it’s versatile enough for you to input its settings manually if you choose to do so. The design is discreet, and it’ll blend in well wherever you place it.

If you need a purifier that works well, cleans the air fast, and is easy to use and maintain, the AirMega is certainly worth consideration.

Check out the AirMega 400S to purify larger rooms.

Air Recommended Air Purifiers

Our Pick Perfect for bedrooms, playrooms, and living rooms, the Coway Airmega AP-1512HH is one of the best-performing, most durable, and most economical purifiers we’ve tested.

Most Popular The Levoit Core 300 air purifier has some strong suits, but in our opinion it falls short of carving out a meaningful niche for itself. Its ideal use would be in a small bedroom occupied by someone who is sensitive to noise.

Also Great With high end air cleaning performance and a whisper quiet fan, the Winix 5500-2 is the perfect combination of power and finesse. It cleared airborne particulates out of our smokey testing room faster than any other model.

Best of the Best If you have a large space you want to remove irritants from, We recommend the Airmega 400S. All of Coway air purifiers do an excellent job of attacking indoor pollutants, and we highly recommend any of them. The 400S is designed to accommodate large room sizes.

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If you have any questions or comments, please add them below in the comment section. Similarly, please let us know if you spot any mistakes or omissions. Thanks!

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About the author

Hi I’m Alex, founder of HouseholdMe.com and I’d like to say thank you for dropping by. Like most of you, the first thing I look at before buying something online is reviews or buying guides. By reading what other people say will help me gauge whether or not a product is good or not.  I am trying to help people find answers, solve problems, and get inspired.

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