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MeatBallSubmarine 14.5K Views
Oct 5, 2025 12:18 AM

Refurbished: Winix C545 4-Stage True HEPA Air Purifier w/ WiFi & PlasmaWave

$70

$100

30% off
+ Free S/Hat Winix
Get Deal at Winix

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Deal Details
Winix has Certified Refurbished: Winix C545 4-Stage True HEPA Air Purifier w/ WiFi & PlasmaWave Technology for $69.99. Shipping is free.

Thanks to community member MeatBallSubmarine for finding this deal.

Note, discount is shown on the product page

Product Features:
  • One Year of Filtration: Includes 1 True HEPA Filter and 4 Carbon Filters
  • AHAM Verifide at 360 sq ft. : Also cleans rooms up to 1,740 sq ft in 1 hour (870 sq ft in 30 minutes, 580 sq ft in 20 minutes, 435 sq ft in 15 minutes)
  • The Smarter Air Purifier: Control and monitor your unit anytime from anywhere by instantly accessing your unit with the Winix Smart App through the convenient Wifi feature
  • Washable Fine Mesh Pre-Filter: The first line of defense against the largest airborne particles found indoors

Editor's Notes

Written by Discombobulated | Staff
  • About this deal:
    • This offer is $20 higher than our previous Frontpage Deal from Woot, but still represents a good value for this product and matches the price featured in older Frontpage Deals.
    • Includes 1-Year warranty
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Winix has Certified Refurbished: Winix C545 4-Stage True HEPA Air Purifier w/ WiFi & PlasmaWave Technology for $69.99. Shipping is free.

Thanks to community member MeatBallSubmarine for finding this deal.

Note, discount is shown on the product page

Product Features:
  • One Year of Filtration: Includes 1 True HEPA Filter and 4 Carbon Filters
  • AHAM Verifide at 360 sq ft. : Also cleans rooms up to 1,740 sq ft in 1 hour (870 sq ft in 30 minutes, 580 sq ft in 20 minutes, 435 sq ft in 15 minutes)
  • The Smarter Air Purifier: Control and monitor your unit anytime from anywhere by instantly accessing your unit with the Winix Smart App through the convenient Wifi feature
  • Washable Fine Mesh Pre-Filter: The first line of defense against the largest airborne particles found indoors

Editor's Notes

Written by Discombobulated | Staff
  • About this deal:
    • This offer is $20 higher than our previous Frontpage Deal from Woot, but still represents a good value for this product and matches the price featured in older Frontpage Deals.
    • Includes 1-Year warranty
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

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44 Comments

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Oct 5, 2025 12:54 AM
1.1K Comments
Joined Feb 2009

This comment has been rated as unhelpful by Slickdeals users.

Oct 5, 2025 12:55 AM
1.6K Comments
Joined Jan 2008
firstrivalOct 5, 2025 12:55 AM
1.6K Comments
4-Stage True HEPA Air Purifier
3
Oct 5, 2025 12:56 AM
715 Comments
Joined Dec 2023
ShrewdVest7049Oct 5, 2025 12:56 AM
715 Comments

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

I have a bunch of these. The oldest one I had for 10 years before the motor died after a kid dropped something inside. They are great. To be fair, I never connect them to WiFi. We just use them as noise machines for the kids rooms, bonus HEPA cleaning.
1
Original Poster
Oct 5, 2025 2:20 AM
175 Comments
Joined Jan 2020
MeatBallSubmarine
Original Poster
Oct 5, 2025 2:20 AM
175 Comments
Quote from TunaNugget View quoted comment :
This had an incredibly annoying Alexa skill. It would make me re-authenticate my account every few days, usually when I was ready to get to sleep. And you couldn't address the device directly, you had to ask Winix to tell the device to do something. I wasn't too sad when the motor started whining and I had to toss it.
I've heard of other people having WiFi connection trouble but mine has been running fine for 3 years without wifi issue. The fan did start making whining noise after close to a year but it was replaced under warranty. no issues since
Oct 5, 2025 3:41 AM
251 Comments
Joined Nov 2011
abstraction21Oct 5, 2025 3:41 AM
251 Comments
Quote from MeatBallSubmarine View quoted comment :
I've heard of other people having WiFi connection trouble but mine has been running fine for 3 years without wifi issue. The fan did start making whining noise after close to a year but it was replaced under warranty. no issues since
It's always best to separate 2.4ghz and 5ghz WiFi connections to help with device compatibility issues.
1
Oct 5, 2025 4:59 AM
7K Comments
Joined Jul 2015
Quality-LearingOct 5, 2025 4:59 AM
7K Comments
These are good but the fall under the printer business model where they get you when it's time to refill the filters
4
Oct 5, 2025 5:01 AM
1.6K Comments
Joined Mar 2023
BigBGOct 5, 2025 5:01 AM
1.6K Comments
People will still be using these when the next pandemic rolls around, because they made so many of them and parts are so readily available.
2

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Oct 5, 2025 5:02 AM
308 Comments
Joined Aug 2010
punnu17Oct 5, 2025 5:02 AM
308 Comments
Does it come with extra filters, Just like the new one?
Original Poster
Oct 5, 2025 11:39 AM
175 Comments
Joined Jan 2020
MeatBallSubmarine
Original Poster
Oct 5, 2025 11:39 AM
175 Comments
Quote from abstraction21 View quoted comment :
It's always best to separate 2.4ghz and 5ghz WiFi connections to help with device compatibility issues.
Maybe but I've been using the same SSID and password for both WiFi frequencies
1
Oct 5, 2025 11:40 AM
1.1K Comments
Joined Feb 2009
TunaNuggetOct 5, 2025 11:40 AM
1.1K Comments
Quote from MeatBallSubmarine View quoted comment :
Quote from TunaNugget :
This had an incredibly annoying Alexa skill. It would make me re-authenticate my account every few days, usually when I was ready to get to sleep. And you couldn't address the device directly, you had to ask Winix to tell the device to do something. I wasn't too sad when the motor started whining and I had to toss it.
I've heard of other people having WiFi connection trouble but mine has been running fine for 3 years without wifi issue. The fan did start making whining noise after close to a year but it was replaced under warranty. no issues since
I never had a network connectivity issue, that always worked fine. The problem was with the Alexa skill. There are lots of reviews on it.
1
Original Poster
Oct 5, 2025 11:43 AM
175 Comments
Joined Jan 2020
MeatBallSubmarine
Original Poster
Oct 5, 2025 11:43 AM
175 Comments
Quote from TunaNugget View quoted comment :
I never had a network connectivity issue, that always worked fine. The problem was with the Alexa skill. There are lots of reviews on it.
I see. I linked Alexa skills at one point but I never used it because I can't remember all those phrases 😂. I just checked Alexa and it looks like it's still connected
Oct 5, 2025 2:54 PM
841 Comments
Joined Jul 2015
hunterbush1Oct 5, 2025 2:54 PM
841 Comments
Quote from vsauce View quoted comment :
These are good but the fall under the printer business model where they get you when it's time to refill the filters
Winix filters are easily found on cramazon for a lot less than name brand. That being said this may be the model you can only get filters for at Costco? My old winix 5300 is still running strong and making cool noises.
Oct 5, 2025 8:44 PM
20 Comments
Joined Oct 2025
AquaPassenger209Oct 5, 2025 8:44 PM
20 Comments
I would recommend just getting the newer and better version, with 2 filters here: https://www.costco.com/p/-/winix-...4000295784

Or if you have the C545 already, the filters are also on sale: https://www.costco.com/p/-/winix-...4000225508
3
Oct 5, 2025 10:49 PM
1.4K Comments
Joined Jun 2009
01granderOct 5, 2025 10:49 PM
1.4K Comments
Do they make these any better when they refurb them? Or use the same bad bearings that will also fail in a year?

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Oct 6, 2025 8:15 AM
9.5K Comments
Joined Dec 2014
LEOMHK1.0Oct 6, 2025 8:15 AM
9.5K Comments
Quote from BigBG View quoted comment :
People will still be using these when the next pandemic rolls around, because they made so many of them and parts are so readily available.
The next pandemic??? Can we afford another one???

*There's a crab festival in my town, pre-pandemic they would sell $55 tickets for two crab meals.
Now it's $65 for one meal !!! Perfect example of Super Inflation !!
Last edited by LEOMHK1.0 October 6, 2025 at 01:19 AM.

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