Coway Airmega 300

$649.00 $549.00

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The Coway Airmega 300 model features smart mode (auto, sleep, eco) and real-time air quality monitoring, so you can rest assured that your Coway Airmega is always at work. 

TRIGGER: |. | -- periodThe Coway Airmega 300 model is not Wi-Fi or app enabled. At 1,256 square feet of coverage, the 300 model is perfect for small to midsize rooms.

Note: Coway Airmega is available for purchase, shipping and use only in the U.S. at this time.

Enjoy Coway Airmega’s 30-day money-back guarantee, free shipping and easy monthly payment options. See details for more.

Real-time Air Quality Monitoring

Coway Airmega’s sensor reports on air quality in real-time every minute of the day.

Smart Mode

Coway Airmega adapts to you by automatically adjusting its fan and air-filtration speeds.


The Coway Airmega 300 smart air purifier effectively filters the air in rooms up to 1,256 square feet.

Powerful Performance

Coway Airmega can change room air up to twice per hour, removing 99.97 percent of pollutants.

Filter Levels

Coway Airmega tells you when the filter needs replacing, so you don’t have to check.


Room Coverage

2 air changes/hr.*
1,256 sq. ft. (117 sq. m)
4 air changes/hr.**
628 sq. ft. (58 sq. m)

Mobile App



Auto Mode
Eco Mode
Sleep Mode


Washable pre-filter + Max2 filter set

(Activated carbon + Green True HEPA)

Real-Time Monitoring

Filter Life Indicator

Fan Speed

Sleep, Low, Medium, High


Coway Airmega application (1, 4, 8 hours)



Size (H x W x D)

21.2 x 13.6 x 13.6 in. (53.8 x 34.5 x 34.5 cm)


21.4 lb. (9.7 kg)

Noise Level

22~52 dB

Power Consumption

57 W

The coverage area of your Coway Airmega reflects the size of the area in which the air purifier can make two air changes per hour. “One air change per hour” reflects how many times your Coway Airmega can clean an area in one hour, assuming the ceiling height is eight feet. *Coway Airmega can clean the area once every 30 minutes. **Coway Airmega can clean the area once every 15 minutes.


Customer Reviews

Why I liked Coway Airmega

Hi, I purchased Coway Airmega when i was fedup with the smoke from the nearby forest fires. I must saw it was such a lifesaver. Though we tried to keep our doors and windows closed, still some smell and smoke could make its way inside. I used to sneeze incessantly and anti-allergic medicines were my life support. Then came the Airmega and my family was so relieved. We could not do anything to douse the wildfires. So, this air purifier provided a great escape from pollution. I would strongly recommend Airmega 300. I came to know about it from this site. (show less) Hi, I purchased Coway Airmega when i was fedup with the smoke from the nearby forest fires. I must saw

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