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Item #:
220469568
Coway Airmega 400S App-Enabled Smart Air Purifier (Covers 1,560 sq. ft.), True HEPA Air Purifier with Smart Technology, Compatible with Amazon Alexa
Item #:
220469568
GBP 619
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
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Order now and get it around Tuesday, July 14
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The Coway Airmega 400S captures 99.999% of nano-sized particles down to 0.01 microns, ensuring your space stays clean and healthy 24/7.
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What Stands Out
Large Coverage
COWAY air purifiers efficiently cover areas up to 4,253ft², making them ideal for whole home purification, ensuring clean air throughout every corner of your living space.
Dual Filters
Featuring XL washable pre-filters and HEPA filters, these purifiers provide dual purification, capturing a wide range of airborne pollutants for superior air quality in your home.
Smart Features
Equipped with AQI monitoring, turbo mode, and timer settings, the COWAY air purifier adapts to your environment, delivering timely and efficient air purification based on real-time air quality.
Product Details
- Covers up to 1,256 sq. ft. with HyperCaptive Filtration System
- Reduces 99.999% of 0.01-micron particles, volatile organic compounds, and odor
- 24/7 air quality monitoring with Smart Mode for energy efficiency
- Eco Mode conserves energy by turning off fan when air quality is purified
- Sleep Mode reduces noise and power consumption when air is clean
- Filter alerts and timer scheduling for efficient maintenance and energy conservation
| Item Weight | 24 lbs (10.89 kg) |
Who Should Buy?
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Large Homes
Ideal for spacious homes needing high-efficiency air purification across large areas without compromising on performance.
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Allergy Sufferers
Equipped with HEPA filters, it effectively reduces allergens, providing relief for users suffering from allergies year-round.
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Health-Conscious Families
Great for families prioritizing a healthy living environment by removing indoor pollutants and improving overall air quality.
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Small Apartments
Overkill for small spaces; smaller or more affordable models would be more efficient and cost-effective.
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Budget-Conscious Buyers
The price point may be too high for individuals needing a basic air purifier without advanced features.
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Noise-Sensitive Users
Turbo mode and fan operation may be too loud for individuals sensitive to noise while sleeping or working.
Product Description
Coway Airmega 400S App-Enabled Smart Air Purifier (Covers 1,560 sq. ft.), True HEPA Air Purifier with Smart Technology, Compatible with Amazon Alexa and Google Home, White (111012)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
How often do I need to replace the filters?
Answer: The filter alerts will notify you when it's time to replace or clean the filters for maximum efficiency. -
Question:
Does it work well in large rooms?
Answer: Yes, the Coway Airmega 400S is designed to purify air in spaces up to 1,560 sq. ft. -
Question:
What is Smart Mode?
Answer: Smart Mode automatically adjusts the fan speed based on the room's air quality for optimal performance and energy efficiency. -
Question:
Does the area (1256 sqft) need to be one open area or can be split into multiple rooms with doors open?
Answer: The recommended area for air purification is 500-700 sq.ft. If you have multiple rooms with doors open, it will result in less efficiency and lower air changes per hour (ACH). Consider using one air purifier per room. -
Question:
Why is there a restriction to ship to California?
Answer: California bans electrostatic air filters due to safety concerns regarding ozone production. This may be the reason for the shipping restriction. However, it is advisable to check the specific product listing for details. -
Question:
Will this work for oil painters - i need it to help with the removal of VOCs such as turpentine and mineral spirits?
Answer: No, this product is not effective for VOC removal. It is recommended to use specific VOC testing instruments and consider alternative methods for VOC reduction. -
Question:
Does this work well to remove pet odors?
Answer: Yes, this product is effective in removing pet odors. It has been reported to quickly eliminate strong odors such as dog farts. -
Question:
What is the difference between the 300 and the 300s?
Answer: The only difference between the 300 and the 300s is that the 300s model is equipped with Wi-Fi connectivity and can be controlled and monitored through a smartphone app. -
Question:
Can it be placed up against a wall?
Answer: Yes, it can be placed up against a wall. However, ensure that there is at least 12 inches of clearance on both the left and right sides for air intake. The purified air comes out from the top. -
Question:
Does the smartphone app support two AirMega purifiers concurrently (300s or 400s)?
Answer: There have been reports of difficulties in connecting the second AirMega purifier to Wi-Fi. It is advisable to troubleshoot and seek assistance if experiencing connectivity issues with multiple units. -
Question:
How loud is this filter at regular (not night) volume? How often does the filter have to be replaced?
Answer: The filter operates at different volumes depending on the settings. At regular volume, it is not loud, especially at lower settings. The frequency of filter replacement may vary, but some filters can be washed or cleaned. -
Question:
Does this emit any ozone?
Answer: No, this product does not emit ozone. It utilizes HEPA/carbon filtration, making it safe for use even in environments with small birds and kittens. -
Question:
The prewash light came on. I washed them and it won't turn off?
Answer: To reset the prewash light, hold it down until it beeps and turns off. This will initiate the countdown for the prewash process again.
Coway HEPA Air Purifiers Editorial Review
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“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
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“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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GBP 619
Order now and get it around Tuesday, July 14
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Cleans spaces up to 1,560 sq. ft. in just 30 minutes.
- Features 3-stage HyperCaptive™ filtration for ultimate air purification.
- Smart Mode optimizes fan speed based on real-time air quality.
- Energy-efficient Eco Mode conserves power when air is clean.
- User-friendly IoCare App for monitoring and alerts.
- Quiet Sleep Mode minimizes noise and power usage at night.
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