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Coway Airmega 400 Review
True Score
Total dud

Experts
Consumers

Expert Rankings
Meant for large spaces, the Coway Airmega 400 might impress most with its smart features, low noise, remote and washable pre-filter, but the high maintenance costs and heavyweight might dissuade others.
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Overview
The Coway Airmega 400 air purifier is a high-end 2016 release that pledges to keep the air clean and free from airborne pollutants thanks to top-end air quality monitoring and an effective 3-stage filtration system.
The air purifier’s air quality monitoring system keeps users aware of their indoor air quality through its LED color ring, and with a filter lifetime indicator, users will always know when it is time for a filter change.
The air purifier is well suited for large 1560 sq ft rooms thanks to a high CADR rating, and with smart features like Auto mode, users won’t even have to bother adjusting it since it does it automatically based on room air quality.
Get to the end of this Coway Airmega 400 review to see what else the cleaner can do, and maybe go over our best-rated air purifiers to see how it compares to the best brands in the market.
What Is Not on the Box
What the brand doesn’t always tell you…
our Verdict

Top evaluators were delighted with the Coway Airmega 400 air purifier and deemed it fit for users with large spaces.
The air purifier’s quiet operation, much like the Blueair 7470i, makes it an excellent pick for use in the house, and since it comes with a remote, owners won’t have to walk over to it to adjust its functioning.
Critics also loved that the pre-filter is washable, but they were slightly put off by the high costs of maintenance and the weight of the Coway air purifier as they feared it would be difficult for some people to move around.
Reasons to Buy
- Washable pre-filter helps save on costs
- Remote allows for convenient operation
- Great for large spaces
- Auto Mode for seamless operation
- Quiet operation
Reasons to Avoid
- High maintenance costs
- Heavy weight makes moving it around difficult
Specifications
Air Purifier Type | Console | |
Air Quality Lights | Yes | |
App Compatible | Yes | |
CADR | 340 CFM | |
Energy Star Certified | Yes | |
Filter Life | 12 months | |
Filter Type | HEPA | |
Ionizing | No | |
Recommended Room Size | 1560 sq ft | |
Wireless Connectivity | Wi-Fi |
All Specs


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Score Card
E
Expert Score
*.75
We place a 75% weighted value on Expert Test Scores
C
Customer Score
*.25
We place a 25% weighted value on Customer Scores
True Score
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