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Coway Airmega 400 Smart Air Purifier (Graphite) Expired

$349 or Less
$456.64
+ Free Shipping
+69 Deal Score
62,218 Views
Update: This popular deal is still available.

Amazon has Coway Airmega 400 Smart Air Purifier (Graphite, 1,560 Sq Ft Coverage) on sale for $349 or *less. Shipping is free.

*Note: Select accounts may have a 5% off coupon on the product page that can be applied to the order making this $331.55. Must be logged into your account to apply coupons.

Thanks to Community Member hkteaman for finding this deal.

Key Features:
  • Designed to clean spaces up to 1,560 sq. ft. in 30 minutes.
  • Combination of a pre-filter, deodorization filter, and True HEPA Filter reduces 99.999% of 0.01-micron particles, including pollen and other allergens; It also reduces 99% of volatile organic compounds and odor.
  • With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality; That means your unit is energy efficient without compromising effectiveness.
  • 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, kicking on again when pollution is detected.
  • When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.
  • 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.
  • The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.
Good Deal?

Original Post

Written by
Edited April 8, 2024 at 02:00 PM by
https://www.amazon.com/AIRMEGA-AP-2015F-Smart-Purifier-Graphite/dp/B0722YZ1R1 [amazon.com]

5% coupon may be YMMV. So far 2 saying they don't see the coupon.

Coway Airmega 400(G) Smart Air Purifier True HEPA Air Purifier with Smart Technology, Covers 1,560 sq. ft., Graphite

I bought the white unit recently at Walmart for $350, got 1.5% CB from my credit card and will get another 10% credit card shopping rewards. This is lower than recent sales of $342. It's great if you have the Amazon Chase card for another 5-6% rewards.

The unit is big but very quiet. Specs:

About this item
[Coverage] Designed to clean spaces up to 1,560 sq. ft. in 30 minutes.
[HyperCaptive Filtration System] Combination of a pre-filter, deodorization filter, and True HEPA Filter reduces 99.999% of 0.01-micron particles, including pollen and other allergens; It also reduces 99% of volatile organic compounds and odor.
[Smart Mode] With its Smart Mode feature, the Airmega automatically adapts to its surroundings by adjusting fan speeds based on the room's air quality; That means your unit is energy efficient without compromising effectiveness.
[Eco Mdoe] 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, kicking on again when pollution is detected.
[Sleep Mode] When the Airmega's built-in light and pollution sensors detect that the room has been dark and the air clean for 3 minutes, Sleep Mode reduces the purifier's noise and power consumption.
[Air Quality Indicator] 24/7 pollution monitor air quality throughout the day, adjusting purification to the necessary level and saving energy when it's not needed.
[Filter Alerts] The air filter indicator tells you when the filters need to be replaced and the prefilters need to be cleaned for maximum efficiency, based on how much air they have processed.
[Timer] Schedule the unit to purify for 1, 4, or 8 hours of use and conserve energy.
[Warranty] 5-year Limited Manufacturer's Warranty
4 air changes/hr.** 780 ft² (72 m²)
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Deal
Score
+69
62,218 Views
$349 or Less
$456.64

Price Intelligence

Model: Coway Airmega 400 Green True HEPA Air Purifier Graphite

Deal History 

Sort: Most Recent
Post Date Sold By Sale Price Activity
02/13/23Amazon$395.49
6
07/09/22Amazon$395
5
05/31/22Amazon$423
5
01/17/22Walmart$400
1
07/11/21Amazon$310.46 popular
21
07/09/21Amazon$344.14
4
Show More

Current Prices

Sort: Lowest to Highest | Last Updated 5/5/2024, 10:35 AM
Sold By Sale Price
Amazon$422.5
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Featured Comments

No wifi on this one. Just fyi.
I own the 300 & the 400. Both awesome units and neither have the wifi feature which are not needed. I set it to smart and it runs 24/7 and adjusts it's speed to the air quality. I wouldnt hesitate to buy another and also without wifi.
This is one of the best air purifiers available. At full speed it's still quiet enough that you can have it in your bedroom whereas most like the Winix ones are too loud. I have 6 of these in my home and over 20 at my business and donated to my children's school classrooms. No more allergies. I highly recommend this to anyone on the fence

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Joined Oct 2018
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> bubble2 17 Posts
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FancyOolongTea
04-22-2024 at 11:44 AM.
04-22-2024 at 11:44 AM.
Quote from msanford87 :
I get so confused on how to properly deploy these and how many I need.

I have a 1500 ish sq ft house. My living room/dinning room and then family room all are open and flow together. Then have hallways to the 2 bedrooms and bathroom.

I have Winix 5500-2 in my family room. I like it but felt it wasn't enough because the one wall here connecting those rooms is between the dining room/family room which is like a half a wall in the way.

I have 2 cats and was still seeing a lot of dust. I recently picked up a Shark Clean Sense 1350 and put it in the dining room and I'm liking it so far. But I'm torn on if I should get another unit still. I was going to move the Winix to the bedroom.
Energy Star provides a guide 7 min of reading?

https://www.energystar.gov/produc...ir-cleaner

You want to look at Air Changes per Hour (ACH) EPA recommends that the air be completed filtered 4.8 times in an hour, keep in mind that th air change is based on the highest fan setting. Below is the ACH for Conway 400.

1 air change/hour 3,120 ft² (290 m²)
2 air changes/hour 1,560 ft² (145 m²)5

4.8 ACH = 650 sq ft.2 . Is the room that the purifer in about 1/3 of your home?

But if you're trying to clear out allergies you want to look at the Clean Air Delivery Rate (CADR). For a room size of 600sq ft you want a CADR of 390


This is the CADR for the Coway 400
CADR (Clean Air Delivery Rate)

285 (Smoke), 358 (Dust), 450 (Pollen)



It is suggested to get a larger air purifier because then to don't have to have the purifier on the high fan mode to get the best numbers.

The other option depending on your layout is having multiple filters in different rooms.
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Joined Feb 2010
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> bubble2 187 Posts
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groovadelickun
04-22-2024 at 12:20 PM.
04-22-2024 at 12:20 PM.
Quote from Jottle :
Same. The lack of a child lock is a surprising omission that I didn't think I'd need. But it's really useful if you have pets that constantly like to jump on top of things.
Quote from Jottle :
I wish someone would 3d print some kind of removable cover for the buttons. Instant buy for me.
Hey, that's a great idea and looks like someone already made a 3D printable one. woot
https://www.printables.com/model/...ner-covers

Will have to give this a try soon!
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Last edited by groovadelickun April 22, 2024 at 12:25 PM.
Joined Apr 2006
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> bubble2 995 Posts
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Jottle
04-22-2024 at 12:43 PM.
04-22-2024 at 12:43 PM.
Quote from groovadelickun :
Hey, that's a great idea and looks like someone already made a 3D printable one. woot
https://www.printables.com/model/...ner-covers

Will have to give this a try soon!

Amazing. I need someone to print this for me though Frown No printer here. Any kind souls?
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Joined Nov 2013
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> bubble2 829 Posts
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Raistlin1
04-22-2024 at 05:54 PM.
04-22-2024 at 05:54 PM.
Quote from expired :
Yes, 400s. My only complaints after owning a couple for over 5 years is that there is no child lock, wifi can be finicky with certain routers, and the air quality sensor seems less sensitive than Winix models or even the Coway 200m that I most recently got. To be fair, I've never actually ever cleaned the sensor, gonna do that now.

Thanks, I wish the wifi version was on sale for this price so I could set a schedule. I don't like the timer, and it only goes up to 8 hours. Going to use it with a Samsung smart plug, and schedule it that way.
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AnynameIwant
04-22-2024 at 06:58 PM.
04-22-2024 at 06:58 PM.
Quote from hungiema :
The coway is better than the blueair 211i. Coway is uses trueHEPA filtration while the blueair uses silentHEPA.

Silent HEPA is just a marketing term. It isn't a real HEPA filter.
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QasimA6353
04-23-2024 at 05:59 AM.
04-23-2024 at 05:59 AM.
As someone who has 2 Persian cats, this thing is amazing. No need for benadryl or flonase now.
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akSanders
04-23-2024 at 07:30 AM.
04-23-2024 at 07:30 AM.
Showing $469 now.
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Joined Mar 2007
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Original Poster
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hkteaman
04-23-2024 at 08:56 AM.
04-23-2024 at 08:56 AM.
I am surprised that the sale went on for 15 days and hoping the next sale is going to be even better!
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> bubble2 25,482 Posts
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namlook
Yesterday at 03:23 PM.
Yesterday at 03:23 PM.
I had a problem with mine and wanted to exchange it but Amazon will only do refund and not exchange. Seems like they always used to do exchanges for defects. You need to return for refund and rebuy at higher price now.
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Last edited by namlook May 5, 2024 at 03:33 PM.
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