Airmega 400

176 m² coverage
Regular price £609.99 GBP
Regular price £609.99 GBP £619.99 GBP Sale price

Includes 1 Max2Green™ Filter that lasts up to 2 months

Product features
  • Dual suction system for maximum performance with compact size
  • Clean air in space up to 176 m²
  • Ideal for larger space, offices and restaurant
  • Max2Green™ filtration system

Dimensions: 41.6 x 67 x 47.9cm

Product Weight: 11.3kg

Box Weight: 13.5kg

Power consumption: 5.9 - 64 W

14-day money back guarantee

Free shipping

10% off filters coupon with registration

Coway HyperCaptive™ Filtration

The combination of multiple filters removes up to 99.999% of nano-sized particles down to 0.01 µm, smaller than bacteria and virus.¹

Washable Pre-Filter

Extra fine pre-filter that captures large dusts, fur, hair and pet hair.

Max2 Green™ Filter

The advanced combined filter of Activated Carbon and GreenHEPA™ technology applied Ultrafine Particle Filter for maximum performance on cleaning common household particles.

Max2 Green™ Filter

Secondary GreenHEPA™ technology applied filter to remove particles including allergens, bacteria, dander, fine dust, mould, pollen and virus.

Washable Pre-Filter

Secondary Pre-Filter removes large dusts, fur, hair and pet hair.

Maximum protection against common household particles


Human Hair

Pet Hair


Max2 Green™ Filter with Coway GreenHEPA™ Technology

Food Smell

Cigarette Smell

Pet Smell




Acetic Acid












GreenHEPA™ Anti-virus Technology

For Dual protection against virus and more.

Our filters are treated with a special anti-virus formula that is harmless to our bodies. It provides double protection that is laboratory tested. Captures 99.9% and neutralizes the possibly harmful particles from the air². Additional external test certifies the neutralization of human coronavirus (HCoV-OC43) in 2 hours³.

Max2 Green™ filter for maximum purification

Carbon + Ultrafine Particle

Micro Seal: No Air Leakage

1 Time Filter Maintenance

Coway GreenHEPA™ Technology

Max2 Green™ Filter is an All-in-One filter combining Activated Carbon and Ultrafine Particle filters. Micro seal, crafted to perfection and combined with GreenHEPA™ tech to offer maximum performance and easy maintenance. 

Dual Air Suction
Dual Air Suction

With Ultra-powerful Performance

The Dual Suction Technology draws contaminated air from two sides and pushes filtered air out to top of the unit, cleaning the air you breathe faster and more efficiently.

Thrust clean air at a 677m³/h CADR

Covering small to extra large spaces up to 176m²

Refreshingly, the smartest Airmega yet

Fully controllable with mobile, smart mode adjusts fan speed and runs eco mode seamlessly with air quality monitoring.

Refreshingly, the smartest Airmega yet

Fully controllable with mobile, smart mode adjusts fan speed and runs eco mode seamlessly with air quality monitoring.

Good Moderate Unhealthy Very unhealthy
2Pre-Filter Cleaning / Main Filter Replacement Notification Light
3Air Quality Indicator
4Fan Speed / Mode control
5Smart Mode / Sleep Mode / 3 Manual Speeds
1 2 3 4 5
Pre-Filter Cleaning / Main Filter Replacement Notification Light
Air Quality Indicator
Fan Speed / Mode control
Smart Mode / Sleep Mode / 3 Manual Speeds

My Smart Modes

Smart Mode adjusts fan speed and settings based on the surrounding air quality and environment.

Airmega Auto Mode

Smart (Auto) Mode

Smart Mode changes the fan speed and turns on the Eco Mode based on real-time air quality. This improves the product efficiency and saves energy.

Smart Eco Mode

Smart (Eco) Mode

Eco Mode turns on automatically when the space remains clean for 10 minutes. The fan will be turned off to save energy and turn back on once the air quality goes bad.

Airmega 300 Sleepmode

Smart (Sleep) Mode

Sleep Mode can be turned on manually and when the room is clean for 3 minutes, the fan rotation will lower automatically to reduce noise and save energy.

Smart premium look

Seamlessly blending the luxury style with fresh air.

Coway Better Life Air Purifier
Coway Better Life Air Purifier
Air Purifier
Coway Air Purifier
Coway Better Life Air Purifier
Airmega 400 Specifications

Room Coverage: 176 m2

CADR (Clean Air Delivery Rate): 677 m3/h

Filter: Pre-Filter + Max2 Green™ Filter

Filter Life Expectancy: Max2 Green™ Filter (1 year)

Air Quality Indicator: 4 Colours (Blue / Green / Pink / Purple)

Airflow Control: 5 Stages (Smart / Sleep / 1 / 2 / 3)

Timer: 1, 4, 8 hours

Minimum Noise: 22 dB

Maximum Noise: 52 dB

Power Consumption: Max 66 W

Product Dimension (H x W x D): 58.4 x 38 x 38 cm

Product Weight: 11.3 kg


Download the manual here:Airmega 400 Manual

ECARF Seal of Quality

The ECARF Seal certifies products and services that have been fully adapted to the needs of allergy sufferer, making an allergic reaction very unlikely.

Quiet Mark Certification

Quiet Mark is a certification provided by the UK Noise Abatement Society and recognized internationally. The seal certifies consumer appliances with exceptional low noises that are ideal for everyday usage.

IDEA Award

Coway’s exquisite product design was awarded the most renowned International Design Excellence Award (IDEA). Coway was awarded for the highest standard for 12 consecutive years.

Any questions? Get in touch