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expired Posted by Xyber1 • Feb 14, 2023

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expired Posted by Xyber1 • Feb 14, 2023

Coway Airmega 400(G) Smart Air Purifier True HEPA Air Purifier with Smart Technology, Covers 1,560 sq. ft., Graphite $395.49 at Amazon

$395

$749

47% off

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Amazon has the Coway Airmega 400S air purifiers on sale for a great price of $403 now

If you have ever tried multiple air purifier brands you'll realize why Coway is one of the highest rated. I run one in almost every room of my home at high and it's significantly quieter than most air purifiers on low or medium. Just the volume of air moved by the Airmega 400 makes it worth every penny.

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

Price Intelligence

Model: Coway Airmega 400 Green True HEPA Air Purifier Graphite

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Sale Price

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Post Date	Sold By	Sale Price	Activity
09/29/24	Amazon	$349 frontpage	47
06/05/24	Amazon	$359	16
04/07/24	Amazon	$349 frontpage	114
07/09/22	Amazon	$395	5
05/31/22	Amazon	$423	5
01/17/22	Walmart	$400	1
07/11/21	Amazon	$310 popular	21
07/09/21	Amazon	$344	4

Current Prices

Sort: Lowest to Highest | Last Updated 6/27/2025, 10:11 PM

Sold By	Sale Price
Amazon	$509.99

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6 Comments

BravePanther415

Feb 15, 2023

27 Posts

Joined Dec 2019

Feb 15, 2023

BravePanther415

Feb 15, 2023

27 Posts

Paid $382 for the white model last year. It's been working out great so far

TodayOnly

Feb 15, 2023

9,168 Posts

Joined Aug 2018

Feb 15, 2023

TodayOnly

Feb 15, 2023

9,168 Posts

Type	Price	Date
Current	$395.49	Feb 13, 2023
Highest *	$749.00	Sep 18, 2020
Lowest *	$294.99	Dec 09, 2019
Average +	$504.86	-

GiaHuy

Feb 16, 2023

143 Posts

Joined Sep 2011

Feb 16, 2023

GiaHuy

Feb 16, 2023

143 Posts

great find! I bought 2 whites smart versions, and love them

GiaHuy

Feb 16, 2023

143 Posts

Joined Sep 2011

Feb 16, 2023

GiaHuy

Feb 16, 2023

143 Posts

Not sure when was this posted, but I just checked Amazon, and

400S (G) is $522.25
400S (W) is $650.68
400 (G) is $402.68
400 (W) is $428.06
300S (W) is $395.95
300 (W) is $345.08

prices as off Feb 16, 2023, at 2am

aholeinthewor1d

Feb 16, 2023

354 Posts

Joined Nov 2016

Feb 16, 2023

aholeinthewor1d

Feb 16, 2023

354 Posts

We have a baby on the way and also live in an older house (converted into two apartments). Want to pick up an air purifier but it's so hard to find consistent reviews. There's been a few different ones on here but no idea what I should even be looking for. As far as the one in this post would it be good for a place that gets dusty pretty quickly? Also don't they use a lot of electricity?

phatman98

Pro

Feb 16, 2023

103 Posts

Joined Sep 2017

Feb 16, 2023

phatman98

Pro

Feb 16, 2023

103 Posts

Coways generally a pretty trusted brand and runs pretty quiet which was huge for me getting an air purifier. I have the 250 and have been really satisfied. Added bonus that it looks nice.

Pro Tip: Whatever the receipt you get, you'll almost always able to be get another 50-100 off if you file for an energy rebate with your company (mine was comed), most of the air purifiers from coway qualify for energy star. Check came in about 6 weeks. YMMV

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Free Shipping Home & Home Improvement Small Appliances Air Purifiers, Humidifiers & Dehumidifiers Online Only

Coway Airmega 400(G) Smart Air Purifier True HEPA Air Purifier with Smart Technology, Covers 1,560 sq. ft., Graphite $395.49 at Amazon

$395

$749

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