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expiredomelette_du_fromage posted Mar 24, 2023 03:35 PM
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expiredomelette_du_fromage posted Mar 24, 2023 03:35 PM

Coway Airmega 400 Smart Air Purifier

+ Free Shipping

$364

$650

44% off
Amazon
110 Comments 82,702 Views
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Update: This popular deal is still available.

Amazon has Coway Airmega 400 Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $363.85. Shipping is free.

Thanks to Community Member omelette_du_fromage for finding this deal.

Key Features:
  • Designed to accommodate large room sizes up to 1,560 square feet.
  • Combination of a washable pre-filter, activated carbon filter, and Green True HEPA Filter effectively reduces 99.999% of 0.01-micron particles in the air, including pollen, pollutants, and other allergens; It also reduces 99% of volatile organic compounds and odor
  • The air filter indicator tells you when the filters need to be replaced
  • 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

Editor's Notes

Written by powerfuldoppler | Staff
  • About this product:
    • Rating of 4.7 from over 5,500 Amazon customer reviews.
  • About this store:
  • Additional Note:

Original Post

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

Amazon has Coway Airmega 400 Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $363.85. Shipping is free.

Thanks to Community Member omelette_du_fromage for finding this deal.

Key Features:
  • Designed to accommodate large room sizes up to 1,560 square feet.
  • Combination of a washable pre-filter, activated carbon filter, and Green True HEPA Filter effectively reduces 99.999% of 0.01-micron particles in the air, including pollen, pollutants, and other allergens; It also reduces 99% of volatile organic compounds and odor
  • The air filter indicator tells you when the filters need to be replaced
  • 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

Editor's Notes

Written by powerfuldoppler | Staff
  • About this product:
    • Rating of 4.7 from over 5,500 Amazon customer reviews.
  • About this store:
  • Additional Note:

Original Post

Written by omelette_du_fromage

Community Voting

Deal Score
+103
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Model: Coway Airmega 400 True HEPA Air Purifier with 1560 sq. ft. Coverage

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 12/27/2025, 04:31 AM
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Amazon$485.88

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Top Comments

omelette_du_fromage
861 Posts
242 Reputation
Another thing to add: if it loses power, it remembers the settings it was set to. So when power is restored, it will turn it self back on to the last setting. So conceivably, you can use a smart plug to automate turning it on and off.
KentT5558
268 Posts
44 Reputation
This is wrong. You need to look at the CADR value, not advertised square footage. AHAM used CADR, and Coway listed their CADR at 328 for dust and smoke, 400 for pollen: https://cowaymega.com/products/airmega-400

Winix C545 is verified by AHAM to have 360 sqft coverage: https://www.winixamerica.com/prod...-purifier/
and https://www.ahamdir.com/room-air-cleaners/
But in the listing, C545 has CADR at 232 for smoke, 243 for dust, and 246 by pollen.

Coway is not verified by AHAM as the time I looked it up for this post. At 3.6 times the price of C545, I don't think it is a good deal, rather a bad one. Furthermore, you want multiple air purifier at multiple spot in the house rather than a single one at a big room to catch dust before it settles on the floor.
kidjayhawk
134 Posts
24 Reputation
Farting next to them has practically become a sport in our household to see how far you can make the indicator go and how fast the blower ramps up. They do filter odor quite well too. 😂

109 Comments

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Mar 24, 2023 07:41 PM
981 Posts
Joined Mar 2015
itsacedeniroMar 24, 2023 07:41 PM
981 Posts
Quote from omelette_du_fromage :
Another thing to add: if it loses power, it remembers the settings it was set to. So when power is restored, it will turn it self back on to the last setting. So conceivably, you can use a smart plug to automate turning it on and off.
That's awesome. I hate having to turn all my Winix ones back on manually after the power goes out.
Mar 24, 2023 07:49 PM
266 Posts
Joined Jun 2018
DestroyerOfMinesMar 24, 2023 07:49 PM
266 Posts
Quote from omelette_du_fromage :
Another thing to add: if it loses power, it remembers the settings it was set to. So when power is restored, it will turn it self back on to the last setting. So conceivably, you can use a smart plug to automate turning it on and off.
Aka Non volatile memory, something the aftermarket head unit in my Subaru lacks 🫠😔
Mar 24, 2023 07:55 PM
30 Posts
Joined Sep 2019
ItachixMar 24, 2023 07:55 PM
30 Posts
this or the winix 5500-2 ?
Mar 24, 2023 08:01 PM
5 Posts
Joined Nov 2018
B2TheLuntMar 24, 2023 08:01 PM
5 Posts
I found a 300 on ebay for around $185, open box new. May want to check ebay after a major sale to see if anyone bought one too many
Mar 24, 2023 08:03 PM
377 Posts
Joined Nov 2015
Panda719Mar 24, 2023 08:03 PM
377 Posts
I picked up the 300 last year during the sale and I love it!
Mar 24, 2023 08:11 PM
60 Posts
Joined Nov 2019
SociableFang131Mar 24, 2023 08:11 PM
60 Posts
I'm a happy user. I have a non-smart version.
Mar 24, 2023 08:12 PM
55 Posts
Joined Apr 2017
shotseeMar 24, 2023 08:12 PM
55 Posts
Don't forget, you can purchase these with your HSA or FSA account if you have one!

Edit: says it's ineligible for HSA FSA account. I bought the 400s last year's slick deal with my HSA card. But I put my card in manually, so that might be the trick.
Last edited by shotsee March 24, 2023 at 02:18 PM.

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Mar 24, 2023 08:19 PM
1,031 Posts
Joined Feb 2018
n00n3Mar 24, 2023 08:19 PM
1,031 Posts
We owned several air cleaners from different brands ranging from Blue Air and Molekule. This model is the most quiet at full blast with a decent CADR.
Mar 24, 2023 08:23 PM
75 Posts
Joined Nov 2013
anhto90Mar 24, 2023 08:23 PM
75 Posts
Thanks perfect timing! I was just looking at it yesterday. Was about to pull the trigger but decided to wait for a sale
Mar 24, 2023 08:32 PM
2,104 Posts
Joined Jul 2008
kfunk7Mar 24, 2023 08:32 PM
2,104 Posts
Quote from quanfucious :
Is the 400s better over non smart version?
Open ended question, I don't need any smart features because I leave it on 24/7. If I have to turn it off for extended period of time, I simply walk to the unit and power it down.
Mar 24, 2023 08:33 PM
22 Posts
Joined Sep 2013
quanfuciousMar 24, 2023 08:33 PM
22 Posts
Quote from kfunk7 :
Open ended question, I don't need any smart features because I leave it on 24/7. If I have to turn it off for extended period of time, I simply walk to the unit and power it down.
Makes sense. Thank you
Mar 24, 2023 08:37 PM
577 Posts
Joined Jul 2004
t_jMar 24, 2023 08:37 PM
577 Posts
Why would you buy this when you can get the Winix 545 for under $100?
1
Original Poster
Mar 24, 2023 08:45 PM
861 Posts
Joined Dec 2004
omelette_du_fromage
Original Poster
Mar 24, 2023 08:45 PM
861 Posts
Quote from t_j :
Why would you buy this when you can get the Winix 545 for under $100?
Much higher airflow, lower noise. Subjective, but I also think it looks better (I also have a Winix 5500 and C535).
Pro
Mar 24, 2023 08:55 PM
2,459 Posts
Joined Jun 2008
darkNiGHTS
Pro
Mar 24, 2023 08:55 PM
2,459 Posts
Quote from t_j :
Why would you buy this when you can get the Winix 545 for under $100?
I've had two Winix C545 units die each in a little over a year (the second was a warranty replacement for the first).

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Mar 24, 2023 08:56 PM
101 Posts
Joined Nov 2012
Nolimit167Mar 24, 2023 08:56 PM
101 Posts
there's a certain cashback site that you can install to get $100 cashback on amazon orders to bring down the price
1

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