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expired Posted by hkteaman • Apr 8, 2024

Coway Airmega 400 Smart Air Purifier (Graphite)

+ Free Shipping

$349 or Less

$457

Amazon
114 Comments 69,469 Views
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Deal Details
Update: This popular deal is still available.

Amazon has Coway Airmega 400 Smart Air Purifier (Graphite, 1,560 Sq Ft Coverage) on sale for $349 or *less. Shipping is free.

*Note: Select accounts may have a 5% off coupon on the product page that can be applied to the order making this $331.55. Must be logged into your account to apply coupons.

Thanks to Community Member hkteaman for finding this deal.

Key Features:
  • Designed to clean spaces up to 1,560 sq. ft. in 30 minutes.
  • Combination of a pre-filter, deodorization filter, and True HEPA Filter reduces 99.999% of 0.01-micron particles, including pollen and other allergens; It also reduces 99% of volatile organic compounds and odor.
  • With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality; That means your unit is energy efficient without compromising effectiveness.
  • When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.
  • When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.
  • 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.
  • The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.

Editor's Notes

Written by oceanlake | Staff
  • About this Deal:
    • With the extra 5% off, this is $11.44 less than the previous Frontpage Deal for this air purifier in white.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Product:
    • Rating of 4.6 stars overall from over 5,900 Amazon customer reviews.
  • About this Store:

Original Post

Written by hkteaman
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has Coway Airmega 400 Smart Air Purifier (Graphite, 1,560 Sq Ft Coverage) on sale for $349 or *less. Shipping is free.

*Note: Select accounts may have a 5% off coupon on the product page that can be applied to the order making this $331.55. Must be logged into your account to apply coupons.

Thanks to Community Member hkteaman for finding this deal.

Key Features:
  • Designed to clean spaces up to 1,560 sq. ft. in 30 minutes.
  • Combination of a pre-filter, deodorization filter, and True HEPA Filter reduces 99.999% of 0.01-micron particles, including pollen and other allergens; It also reduces 99% of volatile organic compounds and odor.
  • With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality; That means your unit is energy efficient without compromising effectiveness.
  • When the air quality in the room remains purified for 30 minutes or more in Eco Mode, the fan will turn off to conserve energy, kicking on again when pollution is detected.
  • When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.
  • 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.
  • The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.

Editor's Notes

Written by oceanlake | Staff
  • About this Deal:
    • With the extra 5% off, this is $11.44 less than the previous Frontpage Deal for this air purifier in white.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.
  • About this Product:
    • Rating of 4.6 stars overall from over 5,900 Amazon customer reviews.
  • About this Store:

Original Post

Written by hkteaman

Community Voting

Deal Score
+69
Good Deal
Visit Amazon

Price Intelligence

Model: Coway Airmega 400 Green True HEPA Air Purifier Graphite

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 1/19/2025, 10:27 PM
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Top Comments

dumask
No wifi on this one. Just fyi.
DJ Dale
I own the 300 & the 400. Both awesome units and neither have the wifi feature which are not needed. I set it to smart and it runs 24/7 and adjusts it's speed to the air quality. I wouldnt hesitate to buy another and also without wifi.
Xyber1
This is one of the best air purifiers available. At full speed it's still quiet enough that you can have it in your bedroom whereas most like the Winix ones are too loud. I have 6 of these in my home and over 20 at my business and donated to my children's school classrooms. No more allergies. I highly recommend this to anyone on the fence

114 Comments

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Apr 8, 2024
423 Posts
Joined Nov 2015
Apr 8, 2024
dumask
Apr 8, 2024
423 Posts

Our community has rated this post as helpful. If you agree, why not thank dumask

No wifi on this one. Just fyi.
6
2
2
Pro
Apr 8, 2024
5,222 Posts
Joined Nov 2005
Apr 8, 2024
DJ Dale
Pro
Apr 8, 2024
5,222 Posts

Our community has rated this post as helpful. If you agree, why not thank DJ Dale

I own the 300 & the 400. Both awesome units and neither have the wifi feature which are not needed. I set it to smart and it runs 24/7 and adjusts it's speed to the air quality. I wouldnt hesitate to buy another and also without wifi.
2
Apr 8, 2024
211 Posts
Joined Jan 2011
Apr 8, 2024
inderrs
Apr 8, 2024
211 Posts
Targeted coupon? I don't see the 5%
Original Poster
Pro
Apr 8, 2024
2,713 Posts
Joined Mar 2007
Apr 8, 2024
hkteaman
Original Poster
Pro
Apr 8, 2024
2,713 Posts
Quote from inderrs :
Targeted coupon? I don't see the 5%
I am not sure. I see the coupon in MS Edge and Chrome browsers and also in my business account. Try a different browser and/or account?
Apr 8, 2024
350 Posts
Joined Jun 2015
Apr 8, 2024
Xyber1
Apr 8, 2024
350 Posts

Our community has rated this post as helpful. If you agree, why not thank Xyber1

This is one of the best air purifiers available. At full speed it's still quiet enough that you can have it in your bedroom whereas most like the Winix ones are too loud. I have 6 of these in my home and over 20 at my business and donated to my children's school classrooms. No more allergies. I highly recommend this to anyone on the fence
1
Apr 8, 2024
1,457 Posts
Joined Jan 2013
Apr 8, 2024
Slashinhobo
Apr 8, 2024
1,457 Posts
Quote from inderrs :
Targeted coupon? I don't see the 5%
They all dont have 5%, you may have selected a different version.
Apr 8, 2024
25,945 Posts
Joined May 2006
Apr 8, 2024
namlook
Apr 8, 2024
25,945 Posts
Quote from Xyber1 :
This is one of the best air purifiers available. At full speed it's still quiet enough that you can have it in your bedroom whereas most like the Winix ones are too loud. I have 6 of these in my home and over 20 at my business and donated to my children's school classrooms. No more allergies. I highly recommend this to anyone on the fence
Says this is rated at 1500 sq ft. Seems like overkill for a bedroom?
1

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Apr 8, 2024
1,220 Posts
Joined Aug 2014
Apr 8, 2024
MrC.
Apr 8, 2024
1,220 Posts
Is this sufficient for a 1500sq ft home, or would I need to buy several for each room?
Apr 8, 2024
2,758 Posts