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expiredGByDesign posted Mar 15, 2022 8:05 PM

Coway Airmega 400S Smart True HEPA Air Purifier (White, Covers 1560 sq. ft.)

$383

$450

14% off
+ Free Shippingat Amazon
211 Comments
158K Views
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Deal Details
Update: This popular deal is still available

Amazon.com has Coway Airmega 400S Smart True HEPA Air Purifier (White, Covers 1560 sq. ft.) for $382.50. Shipping is free.

Thanks to community member Gordonbydesign for finding this deal.

About this item:
  • Coway Airmega 400S 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 Max2 filter – combined activated carbon and True HEPA filter – captures and reduces up to 99.97% of particles 0.3 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. It also includes washable and permanent pre-filter to catch larger dust particles.

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by GByDesign
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available

Amazon.com has Coway Airmega 400S Smart True HEPA Air Purifier (White, Covers 1560 sq. ft.) for $382.50. Shipping is free.

Thanks to community member Gordonbydesign for finding this deal.

About this item:
  • Coway Airmega 400S 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 Max2 filter – combined activated carbon and True HEPA filter – captures and reduces up to 99.97% of particles 0.3 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. It also includes washable and permanent pre-filter to catch larger dust particles.

Editor's Notes

Written by megakimcheelove | Staff

Original Post

Written by GByDesign

Community Voting

Deal Score
+134
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Top Comments

radejs
168Comments
57Reputation
FYI Air cleaners are Health Savings Account allowed purchases
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ryewoods
403Comments
101Reputation
Very good user reviews, but Consumer Reports generally rates Coway models middlingly. They reviewed the slightly smaller Airmega 300 and found it was only Fair at removing dust, pollen, and smoke on Low speed. They also dinged it for being a little loud on High. It was Excellent at removing dust, pollen, and smoke on High speed. Competing models from Samsung, Blueair, and Alen rank higher. I've found CR reviews to not always reflect actual real life performance, so take it for what you will.
Go to Comment
AlanG6671
14Comments
10Reputation
My girlfriend was always sniffling(bad allergies) and I was always snoring. I got 3 of these (1/2/basement) and I just bought another one for her office. These things have made us breathe better and live better. Love them.
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211 Comments

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Mar 16, 2022 3:44 AM
74 Comments
Joined Oct 2009
pvlax4Mar 16, 2022 3:44 AM
74 Comments
Quote from pggu1123 :
I bought two sets from Walmart as they were on sale for $73. Up to $86 currently but still far better than full price. The knock off ones on Amazon have mixed reviews and supposedly reduced lifespan so I ponied up for the authentic ones.

https://www.walmart.com/ip/Coway-.../134675268
Thanks!
Mar 16, 2022 5:25 AM
163 Comments
Joined Sep 2010
thinkthisMar 16, 2022 5:25 AM
163 Comments
Contrary to an above post — the 400 and 400s were released at the same time. I actually bought my 400s when this first launched back in 2015. What's crazy is that it's still competitive with other newer models on the market. Critically, there is an abundant supply of third party air filters on the market that won't break the bank like the OEM ones do.

As for why you would want the S — Alexa baby! You can ask for the lights to turn off on the unit or to power the unit off/on or change the air speed. I actually use this feature a lot.
Mar 16, 2022 5:26 AM
775 Comments
Joined Nov 2013
computergeek2929Mar 16, 2022 5:26 AM
775 Comments
I have one from 2 years ago. Best purchase ever. Buying it again now for another part of the house.
Mar 16, 2022 5:26 AM
1.3K Comments
Joined Jan 2010
psumarshMar 16, 2022 5:26 AM
1.3K Comments
Quote from Vascodegama :
Scheduling is key. You don't need it running 24/7 unless you wfh in a studio apartment.
to be fair, I have the non Wifi version and have it connected to a smart plug. These Coway's are one of the few that retain state when you toggle the power to them. So instead of having yet another IoT device that may/may not actually work, I just do the scheduling with my Tp link smart plug.

I'm not saying non wifi is better or worse, but just that you can get the scheduling in different ways.

That said, with both prices being the same, I'd probably opt for the wifi one
Mar 16, 2022 1:40 PM
61 Comments
Joined Jan 2018
TenaciousBMar 16, 2022 1:40 PM
61 Comments
I was going to pass, but then I saw that they were endorsed by BTS so I'm definitely in now, lol
2
3
Mar 16, 2022 4:47 PM
9.6K Comments
Joined Aug 2018

This comment has been rated as unhelpful by Slickdeals users.

Mar 16, 2022 5:35 PM
82 Comments
Joined Mar 2009
cyangMar 16, 2022 5:35 PM
82 Comments
this machine is amazing. got it last black friday and never needed to tweak it at all. air quality is much better.

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Mar 16, 2022 5:52 PM
273 Comments
Joined Dec 2009
dovienyaMar 16, 2022 5:52 PM
273 Comments
Quote from kida182001 :
Can detect a fart from across the room and would turn red.
I have a different (RabbitAir) smart filter, which is the same. But because I'm a big child, I also have my smart home set to respond to "did somebody fart?" with the star trek shields up sound, turning the house lights red, and setting both of the filters to maximum speed.

I basically never do that, but it's a great way to make a guest laugh. Or annoy my nesting partner.
6
1
Mar 16, 2022 6:25 PM
168 Comments
Joined Mar 2006
radejsMar 16, 2022 6:25 PM
168 Comments
FYI Air cleaners are Health Savings Account allowed purchases
2
Pro
Mar 16, 2022 9:12 PM
5K Comments
Joined Feb 2006
Tazmania99
Pro
Mar 16, 2022 9:12 PM
5K Comments
I have the 400 and absolutely have no complaints. Sometimes when I passed by the 400 after I finished smoking and returned from the balcony, the machine was instantly on.
Mar 16, 2022 10:16 PM
2.1K Comments
Joined Dec 2009

This comment has been rated as unhelpful by Slickdeals users.

Mar 16, 2022 10:26 PM
833 Comments
Joined Nov 2013

This comment has been rated as unhelpful by Slickdeals users.

Mar 17, 2022 12:12 AM
1.8K Comments
Joined Aug 2011
Jereth308Mar 17, 2022 12:12 AM
1.8K Comments
Quote from Naota :
I own the 400, not S. I also have the Winix. I love the Coway as it's quiet and pulls in a lot. The winix pulls in less and is louder. The coway is in my kitchen and tv room whereas the winix is in my bedroom.

I'm tempted to replace the winix with this.
Same experience, I have Winix first, then got Coway last sale... now I'm buying two more of these Coway to place my Winix. Wish it was the non-WIFI for $350 again tho
Mar 17, 2022 1:22 AM
292 Comments
Joined Jan 2009
phithieliMar 17, 2022 1:22 AM
292 Comments
I bought one two years ago and just had it replaced. It was operating and then a loud pop came from the unit and tripped the breaker. They sent one immediately after I sent it out at FEDEX. It's the 400 model but man I love the thing.

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Original Poster
Mar 17, 2022 3:47 AM
794 Comments
Joined Apr 2010
GByDesign
Original Poster
Mar 17, 2022 3:47 AM
794 Comments
Quote from NinjaGrunt :
You can buy replacement filters on Amazon directly from Coway for $85. And although it only specifies in the title that it's for 300/300s, I am guessing it's the same for 400/400s after browsing the Coway store and not seeing a specification for 400/400s specific max2 filters.

AIRMEGA Max 2 Air Purifier Replacement Filter Set for 300/300S https://www.amazon.com/dp/B01C9RI...171G?psc=1
Don't rely on Amazon for stuff like that.

https://cowaymega.com/products/co...filter-set
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