Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
frontpagerubiks posted Apr 03, 2026 06:34 AM
  1. Deal Image
Item 1 of 2
  1. Deal Image
  2. Deal Image
Item 1 of 2
frontpagerubiks posted Apr 03, 2026 06:34 AM

Costco Members: 2-Pk Winix Replacement Air Filters (C545 / C535 / C909)

+ Free Shipping

$60

$80

25% off
Costco Wholesale
46 Comments 16,213 Views
Get Deal at Retailer
Good Deal
Save
Share
Deal Details
Costco Wholesale has for Costco Members: 2-Pack Winix Replacement Air Purifier Filters (various) on sale listed below for $59.99. Shipping is free.

Thanks to Community Members rubiks & c0ld8 for finding this deal.

Available: Features:
  • True-HEPA Filtration
  • Captures up to 99.97% of Particles as Small as 0.3 Microns
  • Activated Carbon Filters: Reduces VOCs and Odors from Cooking, Pets, and Smoke

Editor's Notes

Written by johnny_miller | Staff
  • About this Product:
    • Rated 4.7 - 4.8 out of 5 stars.
  • About this Store:
    • If you don't have a Costco Warehouse Membership, you can sign-up here
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by rubiks
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for Costco Members: 2-Pack Winix Replacement Air Purifier Filters (various) on sale listed below for $59.99. Shipping is free.

Thanks to Community Members rubiks & c0ld8 for finding this deal.

Available: Features:
  • True-HEPA Filtration
  • Captures up to 99.97% of Particles as Small as 0.3 Microns
  • Activated Carbon Filters: Reduces VOCs and Odors from Cooking, Pets, and Smoke

Editor's Notes

Written by johnny_miller | Staff
  • About this Product:
    • Rated 4.7 - 4.8 out of 5 stars.
  • About this Store:
    • If you don't have a Costco Warehouse Membership, you can sign-up here
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by rubiks

Community Voting

Deal Score
+47
Good Deal
Get Deal at Retailer

Leave a Comment

Unregistered (You)

Top Comments

DarnCrazy
2349 Posts
875 Reputation
LifeSupplyUSA on eBay has been pretty solid when it comes to aftermarket filters. I've tried a few others but they were mostly no-name brands and they're no longer being sold. I also buy official Winix filters when they're on sale for cheaper than usual with credit card point deals. Ironically, I found the LifeSupplyUSA filters to actually be thicker and slighter better made and the official OEM filters.
configer
732 Posts
62 Reputation
is it really better than generic brands also claiming HEPA?

46 Comments

Sign up for a Slickdeals account to remove this ad.

Apr 03, 2026 04:21 PM
732 Posts
Joined Sep 2015
configerApr 03, 2026 04:21 PM
732 Posts
is it really better than generic brands also claiming HEPA?
Apr 03, 2026 09:18 PM
1,032 Posts
Joined Sep 2014
m3n00bApr 03, 2026 09:18 PM
1,032 Posts
Quote from configer :
is it really better than generic brands also claiming HEPA?
I don't think so
1
8
Apr 03, 2026 09:20 PM
1,850 Posts
Joined Sep 2005

This comment has been rated as unhelpful by Slickdeals users.

Apr 03, 2026 09:25 PM
2,349 Posts
Joined Feb 2005
DarnCrazyApr 03, 2026 09:25 PM
2,349 Posts
Quote from configer :
is it really better than generic brands also claiming HEPA?
It really depends on the generic ones you get. I've had some good success with some filters but also have had some there were clearly inferior with thinner material. So if you find a decent generic, you can definitely get similar OEM like filters.
Apr 03, 2026 09:26 PM
827 Posts
Joined Feb 2024

This comment has been rated as unhelpful by Slickdeals users.

Apr 03, 2026 10:17 PM
118 Posts
Joined Nov 2016
ganievich278Apr 03, 2026 10:17 PM
118 Posts
Quote from DarnCrazy :
It really depends on the generic ones you get. I've had some good success with some filters but also have had some there were clearly inferior with thinner material. So if you find a decent generic, you can definitely get similar OEM like filters.
Any chance you can share your personal opinion on which ones you thought were good and which are not?
Apr 03, 2026 10:26 PM
827 Posts
Joined Feb 2024
GhostGrayBoltApr 03, 2026 10:26 PM
827 Posts
as one can get a refurbed c545 for $59 shipped that comes with one hepa filter and four carbon prefilters, I question those that think this is a good deal...
2

Sign up for a Slickdeals account to remove this ad.

Apr 03, 2026 10:29 PM
827 Posts
Joined Feb 2024
GhostGrayBoltApr 03, 2026 10:29 PM
827 Posts
https://www.amazon.com/C545-Repla...213&sr=8-6
3
Apr 03, 2026 10:42 PM
2,349 Posts
Joined Feb 2005
DarnCrazyApr 03, 2026 10:42 PM
2,349 Posts

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

Quote from ganievich278 :
Any chance you can share your personal opinion on which ones you thought were good and which are not?
LifeSupplyUSA on eBay has been pretty solid when it comes to aftermarket filters. I've tried a few others but they were mostly no-name brands and they're no longer being sold. I also buy official Winix filters when they're on sale for cheaper than usual with credit card point deals. Ironically, I found the LifeSupplyUSA filters to actually be thicker and slighter better made and the official OEM filters.
2
1
Apr 03, 2026 11:01 PM
314 Posts
Joined May 2009
SubieR6Apr 03, 2026 11:01 PM
314 Posts
Anyone else have theirs making high pitched sounds when it runs on high?
1
Apr 04, 2026 12:09 AM
259 Posts
Joined Dec 2020
avalanchedogApr 04, 2026 12:09 AM
259 Posts
This is a great deal. Although I just bought some generics for from Fette Filters for ~$40. Will see how they hold up.
1
Apr 04, 2026 12:16 AM
46 Posts
Joined Oct 2014
bigmik1021Apr 04, 2026 12:16 AM
46 Posts
Quote from GhostGrayBolt :
as one can get a refurbed c545 for $59 shipped that comes with one hepa filter and four carbon prefilters, I question those that think this is a good deal...
You get two filters for 60
1
Apr 04, 2026 01:48 AM
20 Posts
Joined Jan 2018
enigmatticusApr 04, 2026 01:48 AM
20 Posts

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

Quote from SubieR6 :
Anyone else have theirs making high pitched sounds when it runs on high?
That means the bearings in the fan motor are going bad
2
Apr 04, 2026 03:58 AM
61 Posts
Joined Jul 2007
BoycottBuyApr 04, 2026 03:58 AM
61 Posts
Costco shows this fits the C535 and C909. Does it really fit the C545 too?

Sign up for a Slickdeals account to remove this ad.

Apr 04, 2026 04:05 AM
444 Posts
Joined Feb 2010
lostlinkApr 04, 2026 04:05 AM
444 Posts
Quote from BoycottBuy :
Costco shows this fits the C535 and C909. Does it really fit the C545 too?

No but both sizes are usually on sale at the same time.......

https://www.costco.com/p/-/winix-...?langId=-1
1

Leave a Comment

Unregistered (You)

Related Searches

Home & Home ImprovementSmall AppliancesAir Purifiers, Humidifiers & DehumidifiersWinixCostco Wholesale

Popular Deals

See All
Found by hocuspocusblade
Apr 23, 2026 12:05 AM
Forum Thread
365 by Whole Foods Market, Unsalted Black Beans, 15 Ounce (Pack of 4)~$3.72 With S&S @ Amazon~Buy 4 & Save Even More!$3.72$4.36
14% off
5
Found by Taco_Doomsday
Yesterday 07:56 AM
Forum Thread
Milwaukee 48-11-1852 M18â„¢ REDLITHIUMâ„¢ XC 5.0Ah Extended Capacity Battery Pack (2 Piece) $119$119$269
55% off
2
Found by doublehelixx
Today 03:45 PM
Forum Thread
NORTIV 8 Men's Slip On Sneakers (3 Colors) $24.99 + Free Shipping w/ Prime or on $35+$25$60
58% off
2
Found by ppxyz1
Today 02:13 PM
Forum Thread
15-Piece Godiva Assorted Dark Chocolate Gold Gift Box $23.99 & More + Free Store Pickup at Macy's or Free Shipping on $39+$24$40
40% off
0
Found by JohnDubya
Apr 26, 2026 02:41 PM
Forum Thread
$43.99: VEVOR Mechanical Keyless Entry Door Lock, 2.0 Code Upgrade, 4-7 Digits Code, Single-Sided Push Button Combination Mechanical Keypad Door Knob, Auto Locking, Silver$44$56
21% off
1

Trending Deals

See All
Found by StrongWeather642
Today 03:45 PM
Forum Thread
homestyles Dolly Madison Kitchen Cart w/ Stainless Steel Top (Off White) $148.89 + Free Shipping$149$253
41% off
1
Found by phoinix
Today 04:20 PM
Forum Thread
$1786.29 | Canyon Grand Canyon:ON 7, Pistachio, Medium at Amazon$1,786$3,799
52% off
2
Found by Red_Liz
Today 01:29 PM
Forum Thread
Deyhoc Portable Handheld Adjustable Speed Turbo Fan w/ LED Display $6 + Free Shipping w/ Prime or $35+ Orders$6.00$8.00
25% off
1
Found by phoinix
Today 10:52 AM
Forum Thread
$47.99 | 8Bitdo All-Button Arcade Purple Signature Edition Controller (Transparent Purple) at Woot!$48$91
47% off
4
Found by JohnDubya
Today 01:58 PM
Forum Thread
$9.99: Mandy's Multicolor Artificial Tulips Flowers Centerpiece, 13.5" Lifelike PU Fake Floral Stems, 20pcs, Multi Color$9.99$20
50% off
3