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expiredspyder2799 posted Jun 05, 2024 10:59 AM
expiredspyder2799 posted Jun 05, 2024 10:59 AM

Limited-time deal: Coway Airmega 400(G) Smart Air Purifier True HEPA Air Purifier with Smart Technology, Covers 1,560 sq. ft., Graphite - $359.00

$359

$452

20% off
Amazon
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Deal Details
Color Graphite
Brand Coway
Product Dimensions 14.8"D x 14.8"W x 22.8"H
Power Source Corded Electric
Item Weight 24.7 Pounds

https://www.amazon.com/dp/B0722YZ1R1
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Deal Details
Community Notes
About the Poster
Color Graphite
Brand Coway
Product Dimensions 14.8"D x 14.8"W x 22.8"H
Power Source Corded Electric
Item Weight 24.7 Pounds

https://www.amazon.com/dp/B0722YZ1R1

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Model: Coway Airmega 400 Green True HEPA Air Purifier Graphite

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Sort: Lowest to Highest | Last Updated 8/3/2025, 10:40 AM
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Jun 06, 2024 09:49 PM
6,862 Posts
Joined Dec 2008
Jun 06, 2024 09:49 PM
RockalittleJun 06, 2024 09:49 PM
6,862 Posts
Great deal. I had no patience and ordered 2 of these 3 weeks ago. They took almost 3 weeks to arrive and now I have 1 set up and I see this deal. Excuse me while I go cry in the corner
Jun 06, 2024 10:27 PM
273 Posts
Joined Jul 2007
Jun 06, 2024 10:27 PM
KenAFJun 06, 2024 10:27 PM
273 Posts
The Coway 400's smoke CADR is 285 and recommended for 442 sq ft with an 8 ft ceiling based on 4.8 air changes per hour in max speed (noisy) mode. Cut that in half if you want to run in quiet mode.

Coway marketing greatly inflates/overstates the room coverage so don't expect this unit to effectively purify an area of your home with an open floor plan, even on max speed (noisy) mode. It'd do well in a larger bedroom though.
Jun 10, 2024 03:43 AM
561 Posts
Joined Apr 2014
Jun 10, 2024 03:43 AM
WayneTeKJun 10, 2024 03:43 AM
561 Posts
Quote from KenAF :
The Coway 400's smoke CADR is 285 and recommended for 442 sq ft with an 8 ft ceiling based on 4.8 air changes per hour in max speed (noisy) mode. Cut that in half if you want to run in quiet mode.

Coway marketing greatly inflates/overstates the room coverage so don't expect this unit to effectively purify an area of your home with an open floor plan, even on max speed (noisy) mode. It'd do well in a larger bedroom though.
What do you recommend for a large living room with high ceilings ?
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Jun 10, 2024 02:03 PM
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Jun 10, 2024 02:03 PM
spyder2799Jun 10, 2024 02:03 PM
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610 Posts
I have 2 of these , these are fantastic
1
Jun 17, 2024 05:33 PM
400 Posts
Joined Nov 2003
Jun 17, 2024 05:33 PM
ryewoodsJun 17, 2024 05:33 PM
400 Posts
Quote from WayneTeK :
What do you recommend for a large living room with high ceilings ?
Here's a site that does some testing and may be helpful to you. FWIW I have two S400s and love them. The filters typically last a year or more and they will occasionally go on sale at Walmart or Amazon.

https://www.techgearlab.com/revie...rmega-400s
Last edited by ryewoods June 17, 2024 at 10:40 AM.
Jun 17, 2024 08:06 PM
561 Posts
Joined Apr 2014
Jun 17, 2024 08:06 PM
WayneTeKJun 17, 2024 08:06 PM
561 Posts
Quote from ryewoods :
Here's a site that does some testing and may be helpful to you. FWIW I have two S400s and love them. The filters typically last a year or more and they will occasionally go on sale at Walmart or Amazon.

https://www.techgearlab.com/revie...rmega-400s
I just bought it ! Gave it to my parents as a gift.

The filters are $89 on Amazon. According to camel camel the lowest ever was $73.
Jun 24, 2024 01:02 AM
232 Posts
Joined Jun 2010
Jun 24, 2024 01:02 AM
element72Jun 24, 2024 01:02 AM
232 Posts
I use two Airmega AP-1512HH/200M in my room, instead of one big air purifier. I still don't see the reason for buying this big one. Does anyone care to enlighten me?

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Jun 24, 2024 04:29 AM
3,250 Posts
Joined Dec 2005
Jun 24, 2024 04:29 AM
Mr. SparklesJun 24, 2024 04:29 AM
3,250 Posts
Quote from element72 :
I use two Airmega AP-1512HH/200M in my room, instead of one big air purifier. I still don't see the reason for buying this big one. Does anyone care to enlighten me?
The larger (higher filter rate) one is, the lower the fan speed can be used to achieve desired filter rate.

It has been discussed that companies don't test for HEPA filter efficiency at all fan speeds. At higher speeds, air is more likely to leak around the filter.

So to achieve the desired air changes per hour, one should go with the largest filter practicable to get the highest effectiveness and lowest noise.
Jun 24, 2024 02:00 PM
632 Posts
Joined Aug 2008
Jun 24, 2024 02:00 PM
frumplyJun 24, 2024 02:00 PM
632 Posts
Quote from WayneTeK :
What do you recommend for a large living room with high ceilings ?
More filters peppered around the room is the answer I reached. The Winix filters are stuoid cheap on sales and we have several in the living room.
Jun 24, 2024 06:40 PM
150 Posts
Joined May 2022
Jun 24, 2024 06:40 PM
JellicalJun 24, 2024 06:40 PM
150 Posts
Quote from Rockalittle :
Great deal. I had no patience and ordered 2 of these 3 weeks ago. They took almost 3 weeks to arrive and now I have 1 set up and I see this deal. Excuse me while I go cry in the corner
Just buy this, and return
1
Jun 24, 2024 09:44 PM
242 Posts
Joined Dec 2008
Jun 24, 2024 09:44 PM
ff4930Jun 24, 2024 09:44 PM
242 Posts
This is one without WiFi / app capability right? Any significance without this?
Jun 24, 2024 09:47 PM
18 Posts
Joined Apr 2022
Jun 24, 2024 09:47 PM
breakdanceJun 24, 2024 09:47 PM
18 Posts
If you have an Amazon credit card it shows as having 10% cash back on this one
Jun 24, 2024 10:44 PM
242 Posts
Joined Dec 2008
Jun 24, 2024 10:44 PM
ff4930Jun 24, 2024 10:44 PM
242 Posts
Quote from breakdance :
If you have an Amazon credit card it shows as having 10% cash back on this one
Where do you see this?
Jun 24, 2024 11:14 PM
680 Posts
Joined May 2017
Jun 24, 2024 11:14 PM
lvbniJun 24, 2024 11:14 PM
680 Posts
Quote from breakdance :
If you have an Amazon credit card it shows as having 10% cash back on this one
Also not seeing this offer. Where did you see that, please?

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Jun 25, 2024 04:03 AM
81 Posts
Joined Oct 2006
Jun 25, 2024 04:03 AM
dschonewJun 25, 2024 04:03 AM
81 Posts
The white 400S with WiFi is also on sale. I have 1x of the 400 and 4x of the 400S. I much prefer the remote control and scheduling options available with the 400S. Both are great and the filters last a long time.

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