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expiredSDkimchi posted Aug 22, 2021 09:32 PM
expiredSDkimchi posted Aug 22, 2021 09:32 PM

Coway Airmega 400 Smart Air Purifier (1,560 Sq Ft Coverage)

+ Free Shipping

$351

$749

53% off
Amazon
85 Comments 52,405 Views
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Deal Details
Amazon has Coway Airmega 400 Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $350.96. Shipping is free.

Thanks to community member SDkimchi for finding this deal.

Key Features:
  • Designed to accommodate large room sizes up to 1,560 square feet.
  • Combined activated carbon and a True HEPA filter-captures and reduces up to 99.99 percent of particles 0.01 microns in the air, including pollen, pollutants and other allergens.
  • Five fan modes: Smart, Sleep, Low, Medium and High.
  • Max noise at highest setting is 43.2 dB.
  • Timer with 1, 2, 4 and 8 hour settings, plus indicators for filter lifetime for both the washable pre-filter and Max2 filter.
  • Energy Star certified and consumes 64 watts.
  • Limited manufacture's warranty covers any internal malfunctions for 1 year and motor and electronic parts for 5 years. Filters are excluded.

Editor's Notes

Written by Corwin | Staff
  • About this deal:
    • This is now priced $10.28 lower than it was in this previous +83 Frontpage Deal from 2019.
    • The Coway Airmega 400 Smart Air Purifier (White, AP-2015F) is priced $398.04 lower (53.1% savings) than the $749 list price.
  • About this product:
    • This has a 4.7 out of 5 star overall rating on Amazon based on over 1,200 reviews.
  • About this store:

Original Post

Written by SDkimchi
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has Coway Airmega 400 Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $350.96. Shipping is free.

Thanks to community member SDkimchi for finding this deal.

Key Features:
  • Designed to accommodate large room sizes up to 1,560 square feet.
  • Combined activated carbon and a True HEPA filter-captures and reduces up to 99.99 percent of particles 0.01 microns in the air, including pollen, pollutants and other allergens.
  • Five fan modes: Smart, Sleep, Low, Medium and High.
  • Max noise at highest setting is 43.2 dB.
  • Timer with 1, 2, 4 and 8 hour settings, plus indicators for filter lifetime for both the washable pre-filter and Max2 filter.
  • Energy Star certified and consumes 64 watts.
  • Limited manufacture's warranty covers any internal malfunctions for 1 year and motor and electronic parts for 5 years. Filters are excluded.

Editor's Notes

Written by Corwin | Staff
  • About this deal:
    • This is now priced $10.28 lower than it was in this previous +83 Frontpage Deal from 2019.
    • The Coway Airmega 400 Smart Air Purifier (White, AP-2015F) is priced $398.04 lower (53.1% savings) than the $749 list price.
  • About this product:
    • This has a 4.7 out of 5 star overall rating on Amazon based on over 1,200 reviews.
  • About this store:

Original Post

Written by SDkimchi

Community Voting

Deal Score
+74
Good Deal
Visit Amazon

Price Intelligence

Model: Coway Airmega 400 True HEPA Air Purifier with 1560 sq. ft. Coverage

Deal History 

Sale Price
Slickdeal
  • $300
  • $500
  • $700
  • $900
  • Today
  • 7/12
  • 7/2
  • 6/22
  • 6/12
  • 6/2
  • 5/23
  • 5/13
  • 5/3
  • 4/23

Current Prices

Sort: Lowest to Highest | Last Updated 7/22/2025, 12:06 PM
Sold By Sale Price
Amazon$499.99

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Top Comments

corazan83
95 Posts
26 Reputation
I read that it better to have 2 smaller air filter than 1 large one like these that cover 1500 sqft, make sense since you stuck one of these baby in 1 area might take a super long time to filter the farthest corner.
Chris2pher
185 Posts
47 Reputation
Check with your energy provider to see if they have $25 or $50 rebates for energy star air purifiers. Unfortunately my local provider dropped from $50 rebates to $25 this year.
niz0
397 Posts
67 Reputation
FWIW, it is currently priced more than $100 under average price; ref: ccc

But, it's been on the market for almost 5 years, so it's probably getting replaced so app support may fall behind during the life of ownership if you purchased now.

84 Comments

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Aug 23, 2021 03:37 AM
888 Posts
Joined Aug 2015
Aug 23, 2021 03:37 AM
PhuongN1949Aug 23, 2021 03:37 AM
888 Posts
If you have Dominion Energy, may qualify for $50 rebate.
Aug 23, 2021 03:50 AM
420 Posts
Joined Mar 2019
Aug 23, 2021 03:50 AM
RawGGAug 23, 2021 03:50 AM
420 Posts
Quote from corazan83 :
I read that it better to have 2 smaller air filter than 1 large one like these that cover 1500 sqft, make sense since you stuck one of these baby in 1 area might take a super long time to filter the farthest corner.
I was looking at the Coway Airmega 400 for my living room/kitchen/dining room area but I decided to get two Coway Airmega 250 instead, so far so good.
Aug 23, 2021 03:52 AM
207 Posts
Joined May 2011
Aug 23, 2021 03:52 AM
toast123Aug 23, 2021 03:52 AM
207 Posts

Our community has rated this post as helpful. If you agree, why not thank toast123

Consumer Reports doesn't recommend the 300 model for this one. Says dust/pollen/smoke removal is only 2/5. Gonna pass. Pretty satisfied so far with my Blueair Pure 211+ even though it is in slightly a larger space than it's rated.
2
Aug 23, 2021 03:56 AM
61 Posts
Joined Apr 2021
Aug 23, 2021 03:56 AM
Carlos9977Aug 23, 2021 03:56 AM
61 Posts
My only concern is that the charcoal filters are very expensive and should be changed twice a year. In three years you bought the machine again.
Aug 23, 2021 03:59 AM
640 Posts
Joined Jul 2015
Aug 23, 2021 03:59 AM
JohnR7860Aug 23, 2021 03:59 AM
640 Posts
Quote from Coffeelover696969 :
Made in Korea!!!
Good people to support!
3
Pro
Aug 23, 2021 04:01 AM
4,296 Posts
Joined Jul 2003
Aug 23, 2021 04:01 AM
Mike C
Pro
Aug 23, 2021 04:01 AM
4,296 Posts
I have been picking up one of two air filters every posted slickdeal, a few different models. The deals I have like the best are the Winix C545 ($70 for 250CFM/400 SQFT) and the Winix 5500-2 ($100 for 250CFM/400 SQFT, but with active charcoal prefilter). These are great in that you can spread them out in large rooms, put in multiple rooms, etc. at a pretty low cost. As someone said earlier in the thread, buy multiples is better than one big one (and for the 545, you can get FIVE of them for the same price as one of these Cosway 400s, no brainer to go with the 545): https://www.youtube.com/watch?v=kCCy72Nu79Q

I also like that the smaller ones are designed to go against walls, somewhat easier to place (I like to put them new A/C vents so they are near air currents).

https://www.youtube.com/watch?v=kCCy72Nu79Q
Aug 23, 2021 04:34 AM
221 Posts
Joined Nov 2007
Aug 23, 2021 04:34 AM
shazzyAug 23, 2021 04:34 AM
221 Posts
I bought the 300 model (I see this one is the 400) 4 years ago for $440. It has been a good filter. I would recommend it.

Just FYI. The replacement filters go for around $80.
Last edited by shazzy August 22, 2021 at 09:37 PM.

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Aug 23, 2021 04:49 AM
197 Posts
Joined Oct 2005
Aug 23, 2021 04:49 AM
Goomaster50000Aug 23, 2021 04:49 AM
197 Posts
For those looking for a more entry level filter, a box fan with a 20x20x1 furnace filter slapped on the back is plenty for most people. On low setting, the air draw is enough to hold the filter in place. Simple as that, and I've had one running continuous for ~5 years now, plus 2 others I've added in another bedroom and near the litter box.

Since they're run continuous rather than cycled like a standard furnace, the filters will clog up quicker. Rather than the typical 90 days, they should be replaced monthly. Mine get changed when I remember, which is closer to every 3 months, but that's enough improvement in air quality for my needs. Need finer filtration, get a better quality furnace filter.

If that doesn't work for you, then this deal is a good option. Just seems like overkill for most people's needs, and a steep initial investment. Worst case you end up with a budget filter for a guest room, and buy this beast for your master.
3
Aug 23, 2021 04:54 AM
29 Posts
Joined Nov 2016
Aug 23, 2021 04:54 AM
IKnowIKnowNothingAug 23, 2021 04:54 AM
29 Posts
Quote from corazan83 :
I read that it better to have 2 smaller air filter than 1 large one like these that cover 1500 sqft, make sense since you stuck one of these baby in 1 area might take a super long time to filter the farthest corner.
It is undoubtedly better to have multiple smaller units unless you have one big open floor plan but also more inconvenient to clean them all constantly and change filters.

Personally I run a bunch on Winix refurb units because they are cheap and replacement filters are cheap. I prefer to run a bunch of them at a lower speed and they are basically silent.
Aug 23, 2021 05:13 AM
57 Posts
Joined Sep 2019

This comment has been rated as unhelpful by Slickdeals users.

Aug 23, 2021 05:17 AM
968 Posts
Joined Sep 2011
Aug 23, 2021 05:17 AM
mathematicalAug 23, 2021 05:17 AM
968 Posts
To add to this, if you're OK with a higher initial cost, Lasko put out their new "Air Flex" which is a $60 fan but it includes a built-in filter holder so it looks a little nicer. It also comes with an initial MERV10 filter, so that's at least $10 in value.

Amazon: https://smile.amazon.com/Lasko-FF...B089P1Z38J

QVC: https://www.qvc.com/Lasko-Air-Fle...GBA&TZ=EST

Newegg: https://www.newegg.com/lasko-ff30...000D-00562

Walmart: https://www.walmart.com/ip/Lasko-.../473758982
Aug 23, 2021 05:24 AM
98 Posts
Joined Aug 2011
Aug 23, 2021 05:24 AM
CinnaAug 23, 2021 05:24 AM
98 Posts
Quote from TodayOnly :
is it worth the cost compared to others
Piling on with personal experience. I've owned this air purifier for a couple years. It does a great job at mitigating pet and cooking smells, and works well beyond the set filter change intervals. If you fart within its detection range, it will kick up the fan and out you.
1
Aug 23, 2021 05:28 AM
2,295 Posts
Joined Nov 2007
Aug 23, 2021 05:28 AM
nycboyzAug 23, 2021 05:28 AM
2,295 Posts
Quote from corazan83 :
I read that it better to have 2 smaller air filter than 1 large one like these that cover 1500 sqft, make sense since you stuck one of these baby in 1 area might take a super long time to filter the farthest corner.
I bought a few of the smaller ones recommended by Wirecutter, primarily because I didn't want to buy different size replacement filters. I have four, and the one that runs 24-7 is in my bedroom and my home office. I run the others primarily in the daytime and I use the timer.

BTW, for those complaining about the cost of the filter (you want it to work, don't you?), Coway sends you a 20% off code when you register your product.

https://www.nytimes.com/wirecutte...-purifier/
Aug 23, 2021 05:38 AM
1,700 Posts
Joined Dec 2003
Aug 23, 2021 05:38 AM
lifeatragedyAug 23, 2021 05:38 AM
1,700 Posts
Love farting under the covers and hearing the air purifier crank to full speed a second later. Never gets old.
1
1

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Aug 23, 2021 05:56 AM
857 Posts
Joined Jan 2006
Aug 23, 2021 05:56 AM
daledempAug 23, 2021 05:56 AM
857 Posts
Quote from computergeek2929 :
The app is garbage - you never use it anyway.
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