Hero image 0 of Coway Air Purifier Airmega 400 White True HEPA Air Purifier with 1560 sq ft Coverage, Auto, Eco, & Sleep Mode, Air Quality & Filter Replacement Indicator, 0 of 7
Coway Air Purifier Airmega 400 White True HEPA Air Purifier with 1560 sq ft Coverage, Auto, Eco, & Sleep Mode, Air Quality & Filter Replacement Indicator
Coway Air Purifier Airmega 400 White True HEPA Air Purifier with 1560 sq ft Coverage, Auto, Eco, & Sleep Mode, Air Quality & Filter Replacement IndicatorCoway Air Purifier Airmega 400 White True HEPA Air Purifier 1560 sq ft Coverage Auto Eco Sleep Mode Air Quality Filter Replacement IndicatorCoway Air Purifier Airmega 400 Graphite True HEPA Air Purifier 1560 sq ft Coverage Auto Eco Sleep Mode Air Quality Filter Replacement Indicator
Actual Color:White-Out of stock
Graphite/Silver, $509.99, was $649.99, Out of stock
$509.99$649.99
selected, White, $399.99, was $649.00, Out of stock
$399.99$649.00
Key item features
- Large Coverage: Designed for large rooms up to 1,560 square feet, cleaning the air at least twice per hour.
- HyperCaptive Filtration: Combines activated carbon and True HEPA filter to capture and reduce up to 99.999% of particles as small as 0.01 microns.
- Air Quality Monitor: Real-time air quality monitor adjusts fan and purification levels based on the air quality.
- Multiple Fan Modes: Features five fan modes: Smart, Sleep, Low, Medium, and High, with noise levels as low as 43.2 dB at the highest setting.
- Energy Efficient: Smart mode adapts to surroundings, adjusting fan speed based on air quality and lighting conditions, consuming only 64 watts.
- Filter Replacement Indicator: Intuitive indicator lights up when filters need changing, eliminating the need for manual tracking.
- Timer Settings: Includes a timer with 1, 2, 4, and 8-hour settings for customizable operation.
- Eco-Friendly: Energy Star certified, ensuring efficient energy consumption.
Generated by AI
Specs
- Filter typeHEPA
- Coverage area3120 sq ft
- Clean air delivery rate416 CFM
- Contaminants removedBacteria
- Microparticle performance rating99.99
- Decibel rating22 dB
Reviews summary
Pros
- : Setup is straightforward with clear instructions.
- : Operates at a nearly imperceptible sound level.
- : Has a modern design that fits well in living spaces.
- : Made with carbon pellets instead of sprayed-on carbon.
- : Captures various household odors.
Neutral
- : Provides effective circulation at a reasonable upfront cost, but filter replacements can be pricey.
Generated by AI
Current price is USDNow $399.99
You save $249.01
was $649.00$649.00
You save$249.01
Price when purchased online
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About this item
Product details
The Coway Airmega 400 model features smart mode (auto, sleep, eco) and real-time air quality monitoring, so you can rest assured that the Coway Airmega is at work at all times. The Coway Airmega 400 model is not Wi-Fi or app-enabled. With a coverage area of 1,560 square feet, the Coway Airmega 400 model offers the most air-purifying capacity as compared to our other products and can be used in larger spaces.
- Coway Airmega 400 air purifier is designed to accommodate large room sizes up to 1,560 square feet and cleans the air at least two times per hour when used as recommended. Coway Airmega's HyperCaptive™ filtration system combined activated carbon and a True HEPA filter-captures and reduces up to 99.999% of particles 0.01 microns in the air, including pollen, pollutants, and other allergens. It also reduces more than 99% of volatile organic compounds and reduces fumes such as NH3 and CH3CHO.
- Coway Airmega’s real-time air quality monitor keeps you informed of the quality of your air. In Auto Mode, the fan and purification levels adjust to the space as needed. Coway Airmega has five fan modes: Smart, Sleep, Low, Medium, and High. Noise level is nearly silent at lower speeds. Max noise at the highest setting is 43.2 dB. Coway Airmega is a smart, energy-efficient air purifier with a three-setting smart mode to adapt to its surroundings. Fan speed automatically adjusts based on the room’s air quality and lighting conditions to improve air quality.
- Coway Airmega’s intuitive filter replacement indicator lights when filters need changing, so there’s no need to keep track yourself. Coway Airmega has a timer with 1, 2, 4, and 8-hour settings. Coway Airmega 400 is Energy Star certified and consumes 64 watts.
info:
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Specifications
Filter type
HEPA
Coverage area
3120 sq ft
Clean air delivery rate
416 CFM
Contaminants removed
Bacteria
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Warnings
WARNING: YesWarning Text
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.govSimilar items you might like
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Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Setup is straightforward with clear instructions.
- : Operates at a nearly imperceptible sound level.
- : Has a modern design that fits well in living spaces.
- : Made with carbon pellets instead of sprayed-on carbon.
- : Captures various household odors.
Neutral
- : Provides effective circulation at a reasonable upfront cost, but filter replacements can be pricey.
Generated by AI
Customer photos
+10 images
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Showing 1-3 of 148 reviews
Oct 27, 2021
Marilyn
Item details
Color: White
5 out of 5 stars review
Verified Purchase
Very, Very pleased with my purchase!
The Airmega 400 is worth every dollar. It arrived early, was very easy to set up and started working immediately. We're had it for a week now and we absolutely love it. It does exactly what the company said it would. We are having every room in the entire house painted. We leave the windows cracked during the day. But when it comes time to go to bed, we close all the windows, the house instantly smells like paint. With in 20 minutes the 400 has already detected it and eliminated the oder. No painters smell headache for us tonight! This thing is exactly what we were hoping it would be. Myself, my husband and our son all suffer from allergies and sinus issues. We have seen a big improvement in only a week. And, its not loud at all, even on high setting. We keep it on the smart setting. Thank you, Coway and Walmart! Early delivery, packaging was perfection and it does exactly as advertised!!! One happy customer here! I will be recommending your product to every on I know! 5 stars just isn’t enough! It truly deserves 100!
Helpful?4DA6UFF7VAJQ100994024
Apr 18, 2025
Walmart customer
5 out of 5 stars review
Seller Verified Purchase
I can breathe!
I have had many smaller air purifiers but never felt they could handle our larger open space kitchen and living room. This coway is excellent. Super quiet and honestly the best I have been able to breathe in my home in a decade. Worth every cent. Looks sleek too
Review from Coway USA
Helpful?4DA6UFF7VAJQ100994024
reply from Customer Service
Thank you for sharing your wonderful experience with the Coway Airmega 400! We’re thrilled to hear that it has exceeded your expectations and made such a positive difference in your home. It’s especially gratifying to know that it’s effectively handling your larger open space and providing you with the best air quality you’ve experienced in years. Your praise for its quiet performance and sleek design is truly appreciated—it’s feedback like yours that inspires us to keep delivering innovative and effective solutions. Thank you again for choosing Coway. We’re honored to be part of your home and hope you continue to enjoy the fresh, clean air the Airmega 400 brings! Best regards, Coway USA
Dec 17, 2023
Chris C
5 out of 5 stars review
Seller Verified Purchase
Absolutely amazing!
Very pleased with my purchase. We have cats, dogs, African grey parrot and I also have a reptile room. Before getting this I would have to change my ac air filter every month. Now I’m able to change it every other to 2 months. It does an amazing job at removing odors and everyone in the house has noticed their allergies are much better. Highly recommend buying this for anyone considering a new a purifier or wanting to helps their allergies.
Review from Coway USA
Helpful?4DA6UFF7VAJQ100994024
reply from Customer Service
Thank you for sharing your review! We’re really glad to hear the Airmega 400 has been such a helpful addition to your home — especially with such a lively mix of pets and a reptile room. It’s great to know the unit is helping reduce odors and even extending the life of your AC filters. We also appreciate you sharing how much of a difference it’s made for your household overall. Thank you for the recommendation and for taking the time to share your experience.
