Slickdeals is community-supported.  We may get paid by brands or deals, including promoted items.
Sorry, this deal has expired. Get notified of deals like this in the future. Add Deal Alert for this Item
Popular

Coway Airmega 400 in Graphite/Silver Smart Air Purifier - $310.46 @Amazon/Walmart

$310.46
$499.99
+18 Deal Score
13,018 Views
Coway Airmega 400 in Graphite/Silver Smart Air Purifier with 1,560 sq. ft. Coverage https://www.amazon.com/AIRMEGA-AP...+ai&sr=8-3 NLA

Also available at Walmart:
http://www.walmart.com/ip/Coway-A.../639085205
Good Deal?
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.
Frontpage
Frontpage
Frontpage
$349
+ Free Shipping
24 46
Frontpage
Deal
Score
+18
13,018 Views
$310.46
$499.99

Price Intelligence

Model: Coway Airmega 400 Green True HEPA Air Purifier Graphite

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
04/07/24Amazon$349 or Less frontpage
114
02/13/23Amazon$395.49
6
07/09/22Amazon$395
5
05/31/22Amazon$423
5
01/17/22Walmart$400
1
07/09/21Amazon$344.14
4
Show More

Current Prices

Sort: Lowest to Highest | Last Updated 5/21/2024, 01:05 PM
Sold By Sale Price
Amazon$451.91
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more. If you're not a student, there's also a free 1-Month Amazon Prime trial available. You can also earn cash back rewards on Amazon and Whole Foods purchases with the Amazon Prime Visa credit card. Read our review to see if it’s the right card for you.

Your comment cannot be blank.

Sign up for a Slickdeals account to remove this ad.

Joined Oct 2018
New User
> bubble2 10 Posts
10 Reputation
Seth88
07-11-2021 at 10:55 PM.
07-11-2021 at 10:55 PM.
Really good unit for this price
3
Like
Funny
>
Helpful
Not helpful
Reply
Joined Feb 2021
L6: Expert
> bubble2 1,750 Posts
210 Reputation
FuschiaScene411
07-12-2021 at 08:17 AM.

Our community has rated this post as helpful. If you agree, why not thank FuschiaScene411

07-12-2021 at 08:17 AM.
Just going to copy and paste:

So, as an FYI, this thing uses highly deceptive advertising. Blueair and WINIX use the recommended 4.8 air exchange per hour rating to state their square footage (AKA, an air exchange every 12.5 minutes).

Coway, on the other hand, is using 2 air exchanges per hour to reach the 1,560 square footage. Hence why the CADR doesn't match the hyper inflated claim.
The reality is that this is good for more like 650 Sq ft for the 4.8 air exchanges per hour. Thus, it is slightly inferior to running two C535s at the same time (360 Sq ft each @ 4.8 exchanges).

So, it's a good filter for a big room, but it's not some massively superior filter like they want to make it seem. At this price you're approaching the cost of buying 2-3 C535s, but you need to weigh in the cost of filters.
24
1
>
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Jul 2004
L4: Apprentice
> bubble2 304 Posts
52 Reputation
petite
07-12-2021 at 10:13 AM.
07-12-2021 at 10:13 AM.
Quote from FuschiaScene411 :
Just going to copy and paste:

So, as an FYI, this thing uses highly deceptive advertising. Blueair and WINIX use the recommended 4.8 air exchange per hour rating to state their square footage (AKA, an air exchange every 12.5 minutes).

Coway, on the other hand, is using 2 air exchanges per hour to reach the 1,560 square footage. Hence why the CADR doesn't match the hyper inflated claim.
The reality is that this is good for more like 650 Sq ft for the 4.8 air exchanges per hour. Thus, it is slightly inferior to running two C535s at the same time (360 Sq ft each @ 4.8 exchanges).

So, it's a good filter for a big room, but it's not some massively superior filter like they want to make it seem. At this price you're approaching the cost of buying 2-3 C535s, but you need to weigh in the cost of filters.

What is the cost of filters for c535 vs. those for this one?
1
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined May 2007
L4: Apprentice
> bubble2 492 Posts
219 Reputation
Pro
drivenZ
07-12-2021 at 10:14 AM.
07-12-2021 at 10:14 AM.
I've had this unit running almost non-stop for 18 months in my open kitchen/living room. Seems to do a good job, I also don't have a kitchen exhaust that vents outside, so it kicks on all the time when the kitchen gets smoky as well. I have no complaints.

Doesn't hurt that it looks pretty nice, too.
Like
Funny
>
Helpful
Not helpful
Reply
Joined Dec 2003
L5: Journeyman
> bubble2 664 Posts
27 Reputation
micro
07-12-2021 at 10:25 AM.
07-12-2021 at 10:25 AM.
Does this generate ozone?
2
Like
Funny
>
Helpful
Not helpful
Reply
Joined Jul 2019
New User
> bubble2 3 Posts
14 Reputation
LeonGT1
07-12-2021 at 10:29 AM.
07-12-2021 at 10:29 AM.
This unit has a CADR of 350cfm which is quite meager for its price. Just for comparison, various popular Winix models have CADR of around 240 - delivering 70% of its efficacy at 30% of its price.
5
Like
Funny
>
Helpful
Not helpful
Reply
Joined May 2011
L3: Novice
> bubble2 200 Posts
35 Reputation
daxxjapxx
07-12-2021 at 10:30 AM.
07-12-2021 at 10:30 AM.
I've also had this running in my living room/kitchen(roughly 600 sqft) for 2 years straight, and it's been working wonderfully.
Like
Funny
>
Helpful
Not helpful
Reply

Sign up for a Slickdeals account to remove this ad.

Joined Feb 2018
L4: Apprentice
> bubble2 314 Posts
38 Reputation
reinkespi
07-12-2021 at 10:59 AM.
07-12-2021 at 10:59 AM.
I have two of these. One is upstairs and one is in the basement. They both seem to do a terrific job. Both of my floors are pretty wide open and approximately 1800 square feet each. I would purchase these again. I cannot speak to the comments related to air flow or efficiency but these seem to work really well.
Like
Funny
>
Helpful
Not helpful
Reply
Joined Jul 2007
L3: Novice
> bubble2 279 Posts
170 Reputation
racker15
07-12-2021 at 11:09 AM.
07-12-2021 at 11:09 AM.
Quote from LeonGT1 :
This unit has a CADR of 350cfm which is quite meager for its price. Just for comparison, various popular Winix models have CADR of around 240 - delivering 70% of its efficacy at 30% of its price.
These numbers don't lie BUT they also leave out something important - This CADR 350 cfm at max fan is still quiet enough to have a conversation next to it. But one Winix @ CADR 240 cfm at max fan is distractingly loud. IMHO thats the biggest advantage of this filter - "noise-per-CADR" is great. Agree "$-per-CADR" is not the best.
5
Like
Funny
>
Helpful
Not helpful
Reply
Joined Nov 2020
L3: Novice
> bubble2 169 Posts
94 Reputation
BraveSpaniel9510
07-12-2021 at 11:25 AM.
07-12-2021 at 11:25 AM.
The CADR rating is the same as the Blueair pure 211 and the Honeywell hpa5300b. Yet both of those cost less at full price than this coway on clearance.
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Dec 2019
L2: Beginner
> bubble2 98 Posts
18 Reputation
ejwill
07-12-2021 at 11:45 AM.
07-12-2021 at 11:45 AM.
How does it compare to the Mila air purifier?
Like
Funny
>
Helpful
Not helpful
Reply
Joined Feb 2009
L3: Novice
> bubble2 104 Posts
45 Reputation
Phatkid
07-12-2021 at 11:48 AM.
07-12-2021 at 11:48 AM.
We have this air purifier and can confirm it will work with a smart plug to turn on/off with your phone or voice via alexa/google home.

I have it set to a routine to run when we go to bed. Owned it for 2 years and happy with it
1
>
1
Like
Funny
>
Helpful
Not helpful
Reply
Joined Mar 2008
L3: Novice
> bubble2 118 Posts
30 Reputation
Gigashadowwolf
07-12-2021 at 12:05 PM.
07-12-2021 at 12:05 PM.
Quote from micro :
Does this generate ozone?
No. There is no UV or sterilizer in this system it's just filter powered air purifier.

It's a pretty good one though.

Honestly you probably don't want O-zone generators, they can be harmful long term. If you use one try to limit it to when no one (including pets) are home and wait a few minutes before coming in.

The biggest issue with this unit is the cost of the filters. They are definitely much more expensive than competitors.

But these are POWERFUL and really quiet at the two lower speeds. I use one to cool a server rack actually, its about 3 years now and its still dust free and cool.
3
Like
Funny
>
Helpful
Not helpful
Reply
Joined Feb 2021
L6: Expert
> bubble2 1,750 Posts
210 Reputation
FuschiaScene411
07-12-2021 at 01:06 PM.
07-12-2021 at 01:06 PM.
Quote from petite :
What is the cost of filters for c535 vs. those for this one?

The annual filter cost from Costco's deal is around $89 a year for two purifiers. It's around $95 for the single filter for this on Amazon, $117 from Coway's website.
1
Like
Funny
>
Helpful
Not helpful
Reply
Last edited by FuschiaScene411 July 12, 2021 at 06:12 PM.
Page 1 of 2
Start the Conversation
 
Link Copied

The link has been copied to the clipboard.