1. Introduction
The COWAY Airmega 150 is a compact air purifier designed to enhance indoor air quality. It features a multi-stage filtration system to capture airborne particles and odors, providing cleaner air for your home environment. This manual provides essential information for the proper setup, operation, and maintenance of your Airmega 150.
2. Product Overview
The Airmega 150 is engineered for effective air purification in spaces up to 214 sq. ft. in 12.5 minutes or up to 518 sq. ft. in 30 minutes. Key features include:
- HyperCaptive Filtration System: Combines a Washable Pre-filter, a Deodorization filter, and a Green True HEPA filter to reduce 99.999% of 0.01-micron airborne particles, including pollen, allergens, smoke, dander, and odors.
- Real-Time Air Quality Indicator: A pollution sensor communicates indoor air quality in real-time via a brightly colored LED.
- Auto Mode: Automatically adjusts fan speed based on detected air quality.
- 3-Stage Manual Fan Speed: Allows manual control of fan speed (low, medium, high).
- Easy-to-Remove Pre-filter: Designed for convenient cleaning.
- Cartridge Design for Filters: Simplifies filter replacement.
- Filter Alerts: Indicators notify when filters need cleaning or replacement.
- Ultra Quiet Operation: Noise levels range from 19 dB to 48 dB.

Figure 1: Key features of the COWAY Airmega 150.

Figure 2: HyperCaptive Filtration System components.
3. Setup
3.1 Unboxing and Placement
Carefully remove the air purifier from its packaging. Place the unit on a flat, stable surface. Ensure there is adequate space around the air intake and outlet for optimal airflow. Avoid placing it directly against a wall or in a confined corner.

Figure 3: Airmega 150 dimensions for placement consideration.
3.2 Filter Installation
The Airmega 150 uses a convenient cartridge design for filter installation. The filters are typically pre-installed but may require removal of protective packaging before first use.
- Gently pull the front cover of the air purifier to detach it.
- Remove the pre-filter by pulling it upwards.
- The deodorization filter and True HEPA filter are combined in a single cartridge. Remove this cartridge.
- Remove any plastic packaging from the new filter cartridge.
- Insert the new filter cartridge into the unit, ensuring it is seated correctly.
- Re-insert the pre-filter.
- Align and reattach the front cover until it clicks securely into place.
Video 1: Demonstrates the process of changing filters in the Coway Airmega 150. This includes removing the front panel, detaching the pre-filter, and replacing the combined deodorization and HEPA filter cartridge.
4. Operating Instructions
4.1 Power On/Off
Press the power button (⏻) on the control panel to turn the unit on or off.
4.2 Air Quality Indicator (AQI)
The Airmega 150 features an LED light bar that indicates the current indoor air quality:
- Blue: Good air quality
- Green: Moderate air quality
- Yellow: Unhealthy air quality
- Red: Very unhealthy air quality
The AQI light can be turned on or off by pressing the light bulb icon (💡) on the control panel.

Figure 4: Real-Time Air Quality Indicator and Auto Mode.
Video 2: Illustrates the Airmega 150's real-time air quality indicator lights and how they change based on detected air quality.
4.3 Operating Modes
Press the fan speed button (∿) to cycle through the following modes:
- Auto Mode: The fan speed automatically adjusts based on the air quality detected by the pollution sensor.
- Manual Fan Speed (1, 2, 3): Select from three fan speeds (low, medium, high) for continuous operation.
- Eco Mode: (Not explicitly detailed in provided data, but implied by control panel. Assumed to be an energy-saving mode.)
- Sleep Mode: (Not explicitly detailed in provided data, but implied by control panel. Assumed to be a quiet, low-power mode for nighttime.)
4.4 Timer Function
Press the timer button (🕒) to set the unit to operate for a specific duration (e.g., 1 hour, 4 hours, 8 hours) before automatically turning off.
4.5 Child Lock
To activate or deactivate the Child Lock function, press and hold the light bulb icon (💡) for 3 seconds. This prevents accidental changes to settings.
5. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your Airmega 150.
5.1 Filter Alerts
The control panel features indicators that will light up when it's time to clean or replace filters:
- Pre-filter: Clean every 2-4 weeks (depending on usage and environment).
- Deodorization Filter: Replace approximately every 6 months.
- True HEPA Filter: Replace approximately every 12 months.
After cleaning or replacing a filter, press and hold the Filter Reset button (⎘) for 3 seconds to reset the indicator.

Figure 5: Filter replacement process.
5.2 Cleaning the Washable Pre-Filter
The pre-filter captures larger particles like pet hair and dust. It should be cleaned regularly.
- Turn off and unplug the air purifier.
- Remove the front cover and then the pre-filter.
- Gently vacuum the pre-filter to remove loose dust and debris. For a deeper clean, wash it with water and mild soap.
- Ensure the pre-filter is completely dry before re-installing it.
- Re-install the pre-filter, then the front cover.
- Plug in and turn on the air purifier. Reset the filter alert if necessary.

Figure 6: Cleaning the washable pre-filter.
Video 3: Shows the process of removing and cleaning the pre-filter, highlighting the amount of dust collected.
5.3 Cleaning the Particle Sensor
The particle sensor, located on the side of the unit, should be cleaned every two months to ensure accurate air quality readings.
- Turn off and unplug the air purifier.
- Open the sensor cover on the side of the unit.
- Use a dry cotton swab to gently clean the lens and the air intake/outlet of the sensor.
- Close the sensor cover.
- Plug in and turn on the air purifier.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Coway |
| Model Number | Airmega 150 |
| Product Dimensions | 6.5"D x 13.4"W x 18.5"H |
| Item Weight | 12.1 pounds |
| Floor Area Coverage | 214 Square Feet (12.5 min) / 518 Square Feet (30 min) / 1,035 Square Feet (60 min) |
| Noise Level | 19.98 - 48 Decibels |
| Particle Retention Size | 0.01 Micron (99.999% efficiency) |
| Controller Type | Touch |
| Wattage | 35 watts |
| Filter Class | HyperCaptive Filtration System (Pre-filter, Deodorization filter, Green True HEPA filter) |
| Special Features | Air Quality Monitor, Filter Life Indicator, Smart Mode |
7. Warranty and Support
The COWAY Airmega 150 comes with a 3-year Limited Manufacturer's Warranty. For warranty claims, technical support, or any operational issues not covered in this manual, please contact Coway customer service.
Please refer to the official Coway website or your product registration for detailed warranty terms and contact information.





