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expired Posted by iconian | Staff • Jul 11, 2024
expired Posted by iconian | Staff • Jul 11, 2024

Coway Airmega 400 True HEPA Smart Air Purifier (White)

+ Free Shipping

$335

$470

28% off
Coway
134 Comments 69,307 Views
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Deal Details
Update: This popular deal is still available.

Coway has Coway Airmega 400 True HEPA Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $335. Shipping is free.

Thanks to Deal Editor iconian for finding this deal.

Key Features:
  • Designed to accommodate large room sizes up to 1,560 square feet.
  • Combination of a washable pre-filter, activated carbon filter, and Green True HEPA Filter effectively reduces 99.999% of 0.01-micron particles in the air, including pollen, pollutants, and other allergens; It also reduces 99% of volatile organic compounds and odor
  • The air filter indicator tells you when the filters need to be replaced
  • 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
No Longer Available:
  • Amazon has for Prime Members: Coway Airmega 400 True HEPA Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $339. Shipping is free.

Editor's Notes

Written by qwikwit | Staff
  • About this deal:
    • Prime Store Card Holders: Select % back at checkout to get 10% back with your Prime Store Card.
    • This offer is $10 less than the previous Frontpage Deal (+25) from May
  • About this product:
    • Rating of 4.6 from over 6,090 Amazon customer reviews.
  • About this store:
  • Additional Note:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by iconian | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Coway has Coway Airmega 400 True HEPA Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $335. Shipping is free.

Thanks to Deal Editor iconian for finding this deal.

Key Features:
  • Designed to accommodate large room sizes up to 1,560 square feet.
  • Combination of a washable pre-filter, activated carbon filter, and Green True HEPA Filter effectively reduces 99.999% of 0.01-micron particles in the air, including pollen, pollutants, and other allergens; It also reduces 99% of volatile organic compounds and odor
  • The air filter indicator tells you when the filters need to be replaced
  • 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
No Longer Available:
  • Amazon has for Prime Members: Coway Airmega 400 True HEPA Smart Air Purifier (White, AP-2015F, 1,560 Sq Ft Coverage) on sale for $339. Shipping is free.

Editor's Notes

Written by qwikwit | Staff
  • About this deal:
    • Prime Store Card Holders: Select % back at checkout to get 10% back with your Prime Store Card.
    • This offer is $10 less than the previous Frontpage Deal (+25) from May
  • About this product:
    • Rating of 4.6 from over 6,090 Amazon customer reviews.
  • About this store:
  • Additional Note:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by iconian | Staff

Community Voting

Deal Score
+73
Good Deal
Visit Coway

Price Intelligence

Model: Coway Airmega 400 True HEPA Air Purifier with 1560 sq. ft. Coverage

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 6/14/2025, 10:18 AM
Sold By Sale Price
Amazon$505.98
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Top Comments

Where is the strap on to a box fan comment 😅
I also have Winix C535, C545 and C909 units. The Airmega 400 is suprisingly quieter while also moving alot more air than all of these but I think it is because it has dual inlets/filters.
I run 3 in the living room (2 Airmega 300 on ends next to windows/door and the Airmega 400 in the middle) on auto 24/7 so it doesn't run at high speed often unless we are cooking where the kitchen is in the next room over. I don't notice it even at the middle speed but this is subjective. Here's my research and I encourage anyone with experience on sound/noise chime so we can all learn.

This is the spec on Amazon:
Designed to clean spaces up to 1,560 sq. ft. in 30 minutes.Noise Level : 22-52 dB(A).

According to miracle-ear.com : Generally, the range of human hearing spans 0 decibels (dB) to 120-130 dB

And decibalpro.app : The lowest decibel a human can hear is 0 dB. In some exceptional cases, humans can hear sounds down to -15 dB. 0 dB sounds are very soft and barely perceivable by the human ear.
50 dB is as loud as a quiet conversation, a quiet suburb, a quiet office, or a quiet refrigerator. Notice the use of the word 'quiet' when describing this noise level? That's because all sounds between 31-60 decibels are considered quiet

133 Comments

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Jul 11, 2024
546 Posts
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Jul 11, 2024
WayneTeK
Jul 11, 2024
546 Posts
Blazing hot deal
1
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Jul 11, 2024
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Jul 11, 2024
diadilus
Jul 11, 2024
384 Posts
price only for prime members
1
Jul 11, 2024
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Jul 11, 2024
Deal-R-Dash
Jul 11, 2024
1,166 Posts
I just came to post this but you beat me to it. In for another at this price point!
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Jul 11, 2024
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Jul 11, 2024
hkteaman
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Jul 11, 2024
2,859 Posts
Amazon had a targetted 5% coupon 2 months ago that bought the price down to $331.55 but this is a better price with the 5% additional rewards when using Prime credit card to check out. This is a great filter and very quiet on auto mode running 24/7.

Coway website have the same price if you prefer graphite color.
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Jul 11, 2024
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iconian
Jul 11, 2024
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Quote from Deal-R-Dash :
I just came to post this but you beat me to it. In for another at this price point!
Quote from hkteaman :
Amazon had a targetted 5% coupon 2 months ago that bought the price down to $331.55 but this is a better price with the 5% additional rewards when using Prime credit card to check out. This is a great filter and very quiet on auto mode running 24/7.

Coway website have the same price if you prefer graphite color.

how quiet are these? I have a smaller one (different brand) and it just acts as white noise and after a bit I cant even hear it's there...
1
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Jul 11, 2024
2,859 Posts
Joined Mar 2007
Jul 11, 2024
hkteaman
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Jul 11, 2024
2,859 Posts
Quote from iconian :
how quiet are these? I have a smaller one (different brand) and it just acts as white noise and after a bit I cant even hear it's there...
I run 3 in the living room (2 Airmega 300 on ends next to windows/door and the Airmega 400 in the middle) on auto 24/7 so it doesn't run at high speed often unless we are cooking where the kitchen is in the next room over. I don't notice it even at the middle speed but this is subjective. Here's my research and I encourage anyone with experience on sound/noise chime so we can all learn.

This is the spec on Amazon:
[Coverage] Designed to clean spaces up to 1,560 sq. ft. in 30 minutes.Noise Level : 22-52 dB(A).

According to miracle-ear.com : Generally, the range of human hearing spans 0 decibels (dB) to 120-130 dB

And decibalpro.app : The lowest decibel a human can hear is 0 dB. In some exceptional cases, humans can hear sounds down to -15 dB. 0 dB sounds are very soft and barely perceivable by the human ear.
50 dB is as loud as a quiet conversation, a quiet suburb, a quiet office, or a quiet refrigerator. Notice the use of the word 'quiet' when describing this noise level? That's because all sounds between 31-60 decibels are considered quiet
2
Jul 11, 2024
1,166 Posts
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Jul 11, 2024
Deal-R-Dash
Jul 11, 2024
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Our community has rated this post as helpful. If you agree, why not thank Deal-R-Dash

Quote from iconian :
how quiet are these? I have a smaller one (different brand) and it just acts as white noise and after a bit I cant even hear it's there...
I also have Winix C535, C545 and C909 units. The Airmega 400 is suprisingly quieter while also moving alot more air than all of these but I think it is because it has dual inlets/filters.
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Jul 11, 2024
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CoralBook5019
Jul 11, 2024
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How does this compare in terms of noise and filtering to levoit core 600?
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hkteaman
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Quote from CoralBook5019 :
How does this compare in terms of noise and filtering to levoit core 600?

The 600S noise is 26-55db and the 400 is 22-52db so not much of a difference. I believe they are both capable for similar sized room. I was looking at the 600S this morning when I saw it being almost $100 less. I did a search and not sure how relevant it is with the carbon being behind the Hepa (600S) or in front of the Hepa (400) filter. I am leaning on getting another 400.

600S: CADR of 410 CFM 400: CADR of 430 CFM (need to double check for the 400)

According to Aller Air:
A rule of thumb is that you need about 100 CFM for each 250 square feet of space. If you are looking for a small air purifier for your desk, for example, you will need about 100 CFM. A room air purifier typically has about 400 CFM.

comment on Reddit [reddit.com]
Last edited by hkteaman July 11, 2024 at 10:49 AM.
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Jul 11, 2024
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Jul 11, 2024
CoralBook5019
Jul 11, 2024
219 Posts
Quote from hkteaman :
The 600S noise is 26-55db and the 400 is 22-52db so not much of a difference. I believe they are both capable for similar sized room. I was looking at the 600S this morning when I saw it being almost $100 less. I did a search and not sure how relevant it is with the carbon being behind the Hepa (600S) or in front of the Hepa (400) filter. I am leaning on getting another 400.

600S: CADR of 410 CFM 400: CADR of 430 CFM (need to double check for the 400)

According to Aller Air:
A rule of thumb is that you need about 100 CFM for each 250 square feet of space. If you are looking for a small air purifier for your desk, for example, you will need about 100 CFM. A room air purifier typically has about 400 CFM.

comment on Reddit [reddit.com]
Thank you. I have the 600s and I'm going to get rid of it for the coway 400S when it goes on sale. The reason is because coway is a legit HEPA filter at 99.9999% .01 micron. While the Levoit is 99.97% at .3 micron, and even that is questionable. When I bought levoit originally it was advertised as HEPA. Now they scrubbed all mention of HEPA unless it's in sleep mode. Looking into it there's BBB notice about it and lots of posts about levoit being forced to remove HEPA marketing due to being called out by Dyson. And the way levoit responded was very bad.
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Jul 11, 2024
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hkteaman
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Quote from CoralBook5019 :
Thank you. I have the 600s and I'm going to get rid of it for the coway 400S when it goes on sale. The reason is because coway is a legit HEPA filter at 99.9999% .01 micron. While the Levoit is 99.97% at .3 micron, and even that is questionable. When I bought levoit originally it was advertised as HEPA. Now they scrubbed all mention of HEPA unless it's in sleep mode. Looking into it there's BBB notice about it and lots of posts about levoit being forced to remove HEPA marketing due to being called out by Dyson. And the way levoit responded was very bad.
I recall Menbrane had similar issue. I returned the MSA3 but I don't think it had the labeling issue and got the Leviot Vital 200S.
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CoolKestrel1061
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Austin air is the best! I replace filter only every 5 years.
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Tazmania99
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I thought this is a slick deal, but the claim has been "0 %" after a half day?
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Our community has rated this post as helpful. If you agree, why not thank gustopherdanso

Where is the strap on to a box fan comment 😅
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JayC3270
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Can i use it gor garage workshop?

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