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frontpageTel06c posted Mar 25, 2026 12:44 PM
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frontpageTel06c posted Mar 25, 2026 12:44 PM

Winix 3-Stage True HEPA Air Purifier w/ PlasmaWave Technology

+ Free S&H

$110

$155

29% off
Winix
32 Comments 9,864 Views
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Deal Details
Winix has Winix 3-Stage True HEPA Air Purifier w/ PlasmaWave Technology on sale for $109.99. Shipping is free.

Thanks to community member Tel06c for finding this deal

Note, discount will be shown when added to cart.

Editor's Notes

Written by megakimcheelove | Staff
  • Price Research
    • At the time of research, this product is $45 lower (29.03% savings) normally priced for $154.99 (as part of Winix Spring Sale sitewide)
  • About the Deal
    • The Winix C535 offers true HEPA filter that captures 99.99% of airborne allergens including pollen, dust, smoke, pet dander and other ultrafine particles (as small as 0.003 microns) w/ PlasmaWave Air cleaning technology
    • Recommended for medium size rooms (up to 1776 sq. ft
    • Offer valid while promotional price/supplies last
  • Additional Details
    • Product is eligible for hassle free returns w/ purchase

Original Post

Written by Tel06c
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Winix has Winix 3-Stage True HEPA Air Purifier w/ PlasmaWave Technology on sale for $109.99. Shipping is free.

Thanks to community member Tel06c for finding this deal

Note, discount will be shown when added to cart.

Editor's Notes

Written by megakimcheelove | Staff
  • Price Research
    • At the time of research, this product is $45 lower (29.03% savings) normally priced for $154.99 (as part of Winix Spring Sale sitewide)
  • About the Deal
    • The Winix C535 offers true HEPA filter that captures 99.99% of airborne allergens including pollen, dust, smoke, pet dander and other ultrafine particles (as small as 0.003 microns) w/ PlasmaWave Air cleaning technology
    • Recommended for medium size rooms (up to 1776 sq. ft
    • Offer valid while promotional price/supplies last
  • Additional Details
    • Product is eligible for hassle free returns w/ purchase

Original Post

Written by Tel06c

Community Voting

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Top Comments

beakeru2
1140 Posts
167 Reputation
if you dont mind refurb you can buy at wallyworld for $75 and save $35
https://www.walmart.com/ip/Restor...om=/search
ctcsd
1601 Posts
3410 Reputation
Working for me. The 535 is by far the best Winix ever made.

32 Comments

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Mar 26, 2026 12:31 AM
535 Posts
Joined Jul 2015
hunterbush1Mar 26, 2026 12:31 AM
535 Posts
Is this the one you have to get filters from Costco?
Mar 26, 2026 06:13 AM
68 Posts
Joined Dec 2014
MarySaMar 26, 2026 06:13 AM
68 Posts
Quote from hunterbush1 :
Is this the one you have to get filters from Costco?
You're probably thinking of the c545.

Here is info copy and pasted from Google:
The Winix C545 uses Size S filters (approx. 11 x 13.25 inches), while the Winix C535 uses Size 21/Filter A (approx. 12.6 x 16.3 inches). The C535 filter is significantly larger in surface area, and they are not interchangeable. [1, 2, 3]
Winix C545 (Size S / 1712-0096-00)

• Dimensions: H: 13.1" x L: 10.9" x W: 1"
• Fitment: Typically sold at Costco, uses a smaller filter area, often referred to as "Filter S".
• Carbon Filters: Often requires 4 charcoal pre-filters, changed every 3 months. [1, 3, 4, 5]

Winix C535 (Size 21 / 115115 / Filter A)

• Dimensions: H: 16.34" x L: 12.60" x W: 1.18"
• Fitment: Compatible with 5300, 6300, 5300-2, and P300.
• Carbon Filters: Uses a larger, thicker filter assembly. [2, 6]

Key Takeaway:Ensure you purchase the correct filter by model number. The C545 uses Filter S and the C535 uses Filter A/21. The C535 filter is larger and incompatible with the C545. [2, 3, 7, 9]

AI can make mistakes, so double-check responses

[1] https://www.reddit.com/r/AirPurif...nix_in_my/
[2] https://www.amazon.com/Colorfulli...B0B6HF3F24
[3] https://www.amazon.com/JORAIR-Rep...B09KFS4JWZ
[4] https://www.amazon.com/Cabiclean-...B09T9974GG
[5] https://www.youtube.com/watch?v=Tx_jy2XxLng
[6] https://www.amazon.com/APPLIANCEM...B0D9RGKR9X
[7] https://www.facebook.com/CostcoDe...068001731/
[8] https://www.winixamerica.com/prod...-a-115115/
[9] https://www.gemefindustries.com/W...rs/1086521
2
3
Mar 26, 2026 10:18 AM
1,140 Posts
Joined Feb 2015
beakeru2Mar 26, 2026 10:18 AM
1,140 Posts

Our community has rated this post as helpful. If you agree, why not thank beakeru2

if you dont mind refurb you can buy at wallyworld for $75 and save $35
https://www.walmart.com/ip/Restor...om=/search
2
1
Mar 26, 2026 09:38 PM
15 Posts
Joined Dec 2025
MagentaPassenger975Mar 26, 2026 09:38 PM
15 Posts
Link is 404
2
Pro
Mar 26, 2026 09:47 PM
1,601 Posts
Joined Jun 2017
ctcsd
Pro
Mar 26, 2026 09:47 PM
1,601 Posts
Quote from MagentaPassenger975 :
Link is 404
Working for me. The 535 is by far the best Winix ever made.
Pro
Mar 26, 2026 09:48 PM
1,601 Posts
Joined Jun 2017
ctcsd
Pro
Mar 26, 2026 09:48 PM
1,601 Posts
Quote from beakeru2 :
if you dont mind refurb you can buy at wallyworld for $75 and save $35
https://www.walmart.com/ip/Restor...om=/search
Condition is "fair" though. Probably best to spend the extra $35 on a new one.
Mar 26, 2026 09:59 PM
59 Posts
Joined Nov 2017
OscriptOMar 26, 2026 09:59 PM
59 Posts
I got this one from costco over 7 years ago, and almost use it 24x7. And it is still working perfectly as of today. Also you can get 3rd party carbon and HEPA filter replacements from amazon.

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Pro
Mar 26, 2026 10:04 PM
1,601 Posts
Joined Jun 2017
ctcsd
Pro
Mar 26, 2026 10:04 PM
1,601 Posts
Quote from OscriptO :
I got this one from costco over 7 years ago, and almost use it 24x7. And it is still working perfectly as of today. Also you can get 3rd party carbon and HEPA filter replacements from amazon.
It's an amazing machine. I hope they never stop making them.
Mar 26, 2026 10:10 PM
787 Posts
Joined May 2009
Mr.KeroroMar 26, 2026 10:10 PM
787 Posts
The only difference between c535 and c545 is the c545 has wifi connection for smart home features. There is no significant difference between air quality performance, fan noise, or power usage. Long term value, I find the OEM c545 air filters cheaper to buy than c535 filters.
2
Pro
Mar 26, 2026 10:14 PM
1,601 Posts
Joined Jun 2017
ctcsd
Pro
Mar 26, 2026 10:14 PM
1,601 Posts
Quote from Mr.Keroro :
The only difference between c535 and c545 is the c545 has wifi connection for smart home features. There is no significant difference between air quality performance, fan noise, or power usage. Long term value, I find the OEM c545 air filters cheaper to buy than c535 filters.
My experience is the 535 holds up much better long term and is a more well-made machine. And the Wi-Fi of 545 is useless and unreliable.
Mar 26, 2026 10:25 PM
81 Posts
Joined Jul 2019
ljones5Mar 26, 2026 10:25 PM
81 Posts
I have both. Never use the WiFi of the C545. Have several extra of the genuine "Filter A" for the C535 because it often goes sale ($20-$30 for 1 year supply). Genuine Filter S for the C545 doesn't go on sale, but there are cheaper options third party. C535 uses larger filters which might have a slight advantage in longevity, but also makes unit slightly larger.
Mar 26, 2026 11:03 PM
167 Posts
Joined Jun 2023
SatchBoogie1Mar 26, 2026 11:03 PM
167 Posts
All I know is I have this model. I bought filters from Costco during a sale. It's literally the type I need, but somehow they are thicker than the prior filters. And it's definitely Winix branded.
1
Mar 26, 2026 11:23 PM
75 Posts
Joined Aug 2018
MichaelM6202Mar 26, 2026 11:23 PM
75 Posts
Not a deal at all. Costco had this model before the C545, but Costco package contains two sets of filters for $99 on sale. This package contains only one set of filters.

Costco carried C535, then C545, and now the round one, C610. For the genuine Winix filters, Amazon has a better price for C535 (Size A) filters, $26 a set.
Last edited by MichaelM6202 March 26, 2026 at 04:28 PM.
3
Mar 26, 2026 11:24 PM
124 Posts
Joined Sep 2011
jockobotMar 26, 2026 11:24 PM
124 Posts
I have 3 of these....great units. When purchased new they come with extra filters just fyi not sure if that's the case for refurb. Prefer to my corsi boxes as the prefilter catches a lot and protects the HEPA

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Mar 26, 2026 11:31 PM
1,140 Posts
Joined Feb 2015
beakeru2Mar 26, 2026 11:31 PM
1,140 Posts
Quote from ctcsd :
Condition is "fair" though. Probably best to spend the extra $35 on a new one.
Nope.. got it today.. its brand spanking new ..in a brand new sealed box... trying to attach a picture of it slickdeal not allowing me to . I will be happy to email it though to anyone interested.
Last edited by beakeru2 March 26, 2026 at 04:41 PM.
4

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