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popularphoinix | Staff posted Jun 13, 2026 08:00 AM

[Prime] $135.99* | Winix 5520 True Hepa Air Purifier at Amazon

$136

$180

24% off
 Amazon
4 Comments
3.3K Views
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Deal Details
Amazon [amazon.com] has Winix 5520 True Hepa Air Purifier for $135.99.
Shipping is free.

Price
$44 lower (24% savings) than the typical price of $179.99

*Previous Frontpage Deal at $136 with 66 Deal Score and 57 comments.

Customer reviews
4.6⭐ / 31,455
2,000+ bought in past month

amazon.com/dp/B0DT4F8T4L [amazon.com]

Please report the deal if expired (click report -> expired)
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About the Poster
Deal Details
Community Notes
About the Poster
Amazon [amazon.com] has Winix 5520 True Hepa Air Purifier for $135.99.
Shipping is free.

Price
$44 lower (24% savings) than the typical price of $179.99

*Previous Frontpage Deal at $136 with 66 Deal Score and 57 comments.

Customer reviews
4.6⭐ / 31,455
2,000+ bought in past month

amazon.com/dp/B0DT4F8T4L [amazon.com]

Please report the deal if expired (click report -> expired)
My other deals

#pfpd

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+9
Good Deal
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4 Comments

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Jun 13, 2026 06:11 PM
100 Posts
Joined Dec 2019
TheStarSpangledJun 13, 2026 06:11 PM
100 Posts
Project Farm tested and chose the Winix best air purifier.

https://www.youtube.com/watch?v=sQGfO4hNb60
1
Jun 19, 2026 08:14 PM
666 Posts
Joined Nov 2014
hoxuantuJun 19, 2026 08:14 PM
666 Posts
I would stay away from Winix even how cheap they are. I have C545 model and after a few years, the motor started to make a whirring noise even at the lowest speed. It is a common issue with Winix models. I bought 3 Coway Airmega 200M and they are much quiet.
Jun 19, 2026 08:14 PM
666 Posts
Joined Nov 2014
hoxuantuJun 19, 2026 08:14 PM
666 Posts
Quote from ugurk89 :
Project Farm tested and chose the Winix best air purifier.

https://www.youtube.com/watch?v=sQGfO4hNb60
He could not test for a long-term performance
Jun 20, 2026 02:16 AM
100 Posts
Joined Dec 2019
TheStarSpangledJun 20, 2026 02:16 AM
100 Posts
Quote from hoxuantu :

He could not test for a long-term performance
Waoowww.Project Farm pushes these motors and filters through absolute worst-case scenarios, choking them with extreme smoke and particulate matter, to simulate years of normal wear and tear in a fraction of the time. He measures exact CFM drops, power draw and efficiency degradation under heavy load. That kind of controlled, extreme testing proves a motor's long-term durability far better than someone just running it on low in their bedroom and waiting a few years. You DON'T NEED five years to test long-term performance when you actually know how to stress-test a machine😉 I have exact same air purifier in my home and I am so satisfied. Do you???
1

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