Meet Coway Airmega Air Purifiers
Real-Time Air Quality Monitoring
Coway Airmega’s pollution sensor communicates indoor air quality in real-time. The brightly colored LED ring lets you know how clean or dirty your indoor air is every minute of the day.
Smart (Auto) Mode
In smart mode, your Coway Airmega automatically adjusts the fan speed according to the room’s current air quality.
Good
Fan Rotates Slowly
Very Unhealthy
Fan Rotates Very Fast
Smart (Eco) Mode
When the air quality in the room remains purified for 10 minutes or more in smart eco mode, Coway Airmega turns the fan off to conserve energy.
Fresh Air
Enter Eco Mode
Detects Pollution
Exit Eco Mode
Smart (Sleep) Mode
Dual Suction
Coway Airmega draws contaminated air from two sides and pushes filtered air out the top of the unit, cleaning the air you breathe faster and more efficiently
Dual Suction
Coway Airmega draws contaminated air from two sides and pushes filtered air out the top of the unit, cleaning the air you breathe faster and more efficiently
Max2 Filter
The Max2 filter—a combined activated carbon and a True HEPA filter—captures and reduces up to 99.97 percent of particles 0.3 microns in the air, including pollen, pollutants and other allergens.*** It also reduces more than 99 percent of volatile organic compounds and reduces fumes such as NH3 and CH3CHO.****
*** Based on the True HEPA filter media standard. The actual performance will be determined by indoor air quality and operation of the unit.
**** Based on Coway’s internal data measured under the condition of JEM 1467:2013 standard. The actual performance will be determined by indoor air quality and operation of the unit.
Filter Indicator
Pre-Filter
Max2 Filter Indicator
Pre-Filter Indicator
See all of Coway Airmega’s great features that make the indoor air you breathe cleaner.
| compare all |
400S
Features
|
400 Features |
300S
Features
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300 Features |
|---|---|---|---|---|
| $749 | $649 | $649 | $549 | |
| Room Coverage | ||||
| 2 air changes / hour * | 1,560 ft2 (145 m2) | 1,560 ft2 (145 m2) | 1,256 ft2 (117 m2) | 1,256 ft2 (117 m2) |
| 4 air changes / hour ** | 780 ft2 (72 m2) | 780 ft2 (72 m2) | 628 ft2 (58 m2) | 628 ft2 (58 m2) |
| Wifi / Mobile App | Yes
More |
No | Yes
More |
No |
| Smart Mode | ||||
| Auto Mode | Yes | Yes | Yes | Yes |
| Eco Mode | Yes | Yes | Yes | Yes |
| Sleep Mode | Automatic | Automatic | Manual | Manual |
| Filter | Washable pre-filter +
Max2 filter set (Activated Carbon + Green True HEPA) |
Washable pre-filter +
Max2 filter set (Activated Carbon + Green True HEPA) |
Washable pre-filter +
Max2 filter set (Activated Carbon + Green True HEPA) |
Washable pre-filter +
Max2 filter set (Activated Carbon + Green True HEPA) |
| Real-Time
Monitoring |
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| Filter Life Time Indicator |   |
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| Fan Speed | Sleep, Low, Medium, High | Sleep, Low, Medium, High | Sleep, Low, Medium, High | Sleep, Low, Medium, High |
| Timer | IoCare App (1, 2, 4, 8 hours) | Product (1, 4, 8 hours) | IoCare App (1, 2, 4, 8 hours) | Product (1, 4, 8 hours) |
| Scheduler | Yes | No | Yes | No |
| Size (H×W×D) | 22.8 × 14.8 × 14.8 in
(58.0 × 37.6 × 37.6 cm) |
22.8 × 14.8 × 14.8 in
(58.0 × 37.6 × 37.6 cm) |
21.2 × 13.6 × 13.6 in
(53.8 × 34.5 × 34.5 cm) |
21.2 × 13.6 × 13.6 in
(53.8 × 34.5 × 34.5 cm) |
| Weight | 24.7 lb (11.2 kg) | 24.7 lb (11.2 kg) | 21.4 lb (9.7 kg) | 21.4 lb (9.7 kg) |
| Noise Level | 22~52 dB | 22~52 dB | 22~52 dB | 22~52 dB |
| Power Consumption | 66 W | 66 W | 57 W | 57 W |
Disclaimers
1 Airmega air purifiers have been proven to trap dust, pollen, dander in the air based on KCL(Korea Conformity Laboratories) testing. They have been tested according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2022 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum airflow speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers. Tested with Airmega Aim, 50, 100, 150, Tower AP-1216L, Mighty AP-1512HH, MightyS AP-1512HHS, 200M, Icon, 230, 240, 250, 250S, 300, 300S, 350, 400, 400S, 450, ProX
2Our HEPA filter complies with IEST-RP-CC007 standards at speed level 1 as tested by SGS (Société Générale de Surveillance). SGS's test report only reflects SGS's evaluation of the sample and does not reflect the evaluation of the batch of goods from which the sample was taken. Tested with Airmega 100, 150, 160, Mighty AP-1512HH, MightyS AP-1512HHS, 200M, 230, 240, 250, 250S, 250 Art, 300, 300S, 350, 400, 400S, 450, ProX
3 Tested by KCL(Korea Conformity Laboratories) according to JEM 1467: 2015 condition, the concentration of acetic acid was proven to be reduced up to 99.5% in 60 minutes. Results may vary depending on actual environment. Tested with Airmega 150, Mighty AP-1512HH, 200M
4 Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022, showed result of over 99.5% removal rate of common household gases including Ammonia, Acetaldehyde, Acetic acid, Formaldehyde, Toluene, Benzene, Nitrogen dioxide (NO₂), and Sulfur dioxide (SO₂) within 30 minutes. Results may vary in different environments and not all odors or gas particles may be removed. Tested with Airmega MightyS AP-1512HHS, 250S, 300S, 400S, 350, 450
5 Test conducted using Coway Allergen filter media (5×5 cm) placed in a polyethylene bag. The allergen solution and sample were immersed in 2 mL of phosphate buffer (100 ng/mL) prior to the reaction and heat-sealed to specimen size. The reaction was maintained at 4°C for 24 hours. Nichinichi Pharmaceutical Co., Ltd. conducted the test using ELISA to measure allergen concentration. Results may vary in actual product usage environments. Tested with Airmega Mighty AP-1512HH, 200M
6 Removal rates of Ammonia (NH₃) and Hydrogen Sulfide (H₂S) were tested in a 1 m³ chamber under EL608:2023 conditions for 30 minutes. Gas Detector Tubes were used for measurement, and testing was conducted by KCL (Korea Conformity Laboratories). Results may vary in actual product usage environments. Tested with Airmega Mighty AP-1512HH, 200M
7 Reduction rates of Naphthalene, Sulfur Dioxide, and Nitrogen Dioxide were tested using the Airmega Mighty AP-1512HH in 1㎥ chamber, following JEM-1467:2015 standards. Tests were conducted by Intertek. Actual performance may vary depending on the living environment. Tested with Airmega Mighty AP-1512HH, 200M
9 Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted with Methyl mercaptan, Isovaleraldehyde, Isovaleric acid in a 1.0±0.1 m³ chamber with a test time of 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of over 99.5% was achieved. Results may vary depending on the actual usage environment. Tested with Airmega 350, 450
10 Tested by the Guangzhou Institute of Microbiology, exposed the filter media to protein solutions for 24 hours under ISO 4333-2022 standard. The results showed strong reduction performance: >99.79% for pollen, >99.60% for dog allergen, >99.90% for cat allergen, and >99.80% for dust mites matter allergen. Actual results may vary depending on room size, airflow, and pollutant levels. Tested with Airmega 350, 450
11 Tested by KCL(Korea Conformity Laboratories) according to SPS-KACA002-132:2022. The test was conducted in a 1.0±0.1 m³ chamber for 60 minutes at (24±4)°C and (46±10)% Relative Humidity. A removal ratio of >99.5% was achieved for Formaldehyde and Toluene in 60 minutes. Results may vary depending on the actual usage environment. Tested with Airmega 350, 450
12 Tested by Intertek. The evaluation was conducted against designated test materials: Sulfur dioxide, Nitrogen dioxide, and Naphthalene. The test was performed in a sealed 1.0×1.0×1.0 m (1.0 m³) odor chamber at a test room temperature of (23±2)°C (measured between 23.6∼23.9°C) and a test room humidity of (45±5)% R.H. (measured between 40∼48)% Relative Humidity. It met the odor removal rate of ≥99.9% for Sulfur dioxide, Nitrogen dioxide, and Naphthalene. Results may vary depending on the actual usage environment. Tested with Airmega 350, 450
