C545

Winix

C545

63 positive 0 neutral 9 negative

Based on 72 Reddit mentions

$275.71

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Most discussed features

Sentiment summary across the product areas Reddit users mention most.

Reddit mentions

Original Reddit posts and comments behind this analysis.

Filtered by featurefilter costClear feature

‘Worst case scenario, it’s all summer long’: Air quality alert in NYC, as smoky skies seem here to stay

The most common recommendation is the one that Costco has sold for years, the Winix C545. They put it on sale for $100 multiple times per year and sell the replacement filters for cheap. I have it and it’s great. Quiet, has smartphone controls, looks nice, etc.

CactusBoyScout in r/nyc

June 12, 2025 8:59 PM

33

Please help me not waste money

Winix America has the C545 refurbished $59.99. I've purchased these, they always come with new sealed filters and are like new. Never had a single one I'd say looked used. I don't know if there's just an army of CR box people in this subreddit for the past month or so.... I like CR/Corsi Rosenthal B

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AirFlavoredLemon in r/AirPurifiers

April 4, 2026 9:22 PM

4

Best air purifier under 100$

i did a TON of research a couple days ago about this. i settled on a used/refurbished winix c545 for $60, but the filters are lowk kind of expensive. they sell them in a pack with 4 carbon filters for odors that you switch every 3 months for odors and a filter that lasts a year for $50, which isn’t

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Tiny-Bread2389 in r/AirPurifiers

April 28, 2026 4:07 PM

3

DIY Attempt Finished 2 MERV 14 filters 8 case fans.

I didn't make the point in this thread, but on another - I'm not sure why anyone is comparing retail priced units against a CR-style DIY box. C535 from Winix, new, at costco is on sale periodically for $99.Another that sold out is the C545 for $69.99 at Winix direct, which just sold out last week. F

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AirFlavoredLemon in r/AirPurifiers

April 14, 2026 6:24 AM

2

380 sq ft bedroom. Looking for recs

https://www.reddit.com/r/AirPurifiers/wiki/buying_guide/ Buying guide. Grab whatever is cheapest on the list for "little to no sorbent media". Double check filter costs - ON SALE - using a deal site. I think Winix C545 filters are two for $60 right now on sale (which I think is a bit steep, personal

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AirFlavoredLemon in r/AirPurifiers

April 7, 2026 3:39 AM

2

Home air purifiers for vaulted ceilings and a cat with asthma?

Winix is great for aftermarket filter options. For rooms we have smaller c545 that are pretty cheap refurbished direct from winix. And then our large valued area we have two c909s one I got from Costco online another I got for refurbished from winix. But stock is hard to come by for the refurbs dire

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damien09 in r/AirPurifiers

August 21, 2025 9:59 PM

3

Stay away from Mila Air - They stalled until my unit was out of warranty.

I went through 11 or 12 Milas (originally bought 5) that all had bearings issues or capacitor failures. I finally broke down and bought 5 Winix refurb C545 units for $69 each 2 years ago....best decision ever! They are super easy to clean, I can get off brand filter refills that are a bargain, I lov

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BacardiBlue in r/AirPurifiers

September 12, 2025 12:39 AM

2

Looking for decent “cheap” air purifier for pets

I have had 6 Winix C545 units for 2.5 years that I have been super happy with. I purchased 5 of them as refurbs directly from Winix...they currently have them for sale for $60 which is a fantastic deal. I have replaced the filters with generic replacements from Amazon for about $18/year for the HEPA

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BacardiBlue in r/AirPurifiers

December 30, 2025 3:32 AM

1

30m2 smoker/gaming lounge room

HEPA will struggle to keep up with the smoke, especially if you don't open windows or anything. I'd recommend a dedicated carbon canister filter for the smoke, as well as a HEPA purifier. You'll need way more activated carbon than the single layer that comes with most air purifiers. I do not have re

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justwannascroll in r/AirPurifiers

January 9, 2026 10:09 PM

1

Air Purifier for All Concerns Plus Food Smells

We now have 3 Winix units. Bought a 5520 a couple months ago when it was on sale on Amazon and liked it so much got a c545 and c909 refurbished from Winix direct which just arrived. The 5520 has pellet type carbon filters which I understand last a bit longer than the other types. We use that in the

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Beneficial_Part5226 in r/AirPurifiers

February 11, 2026 1:31 PM

1

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