C545

Winix

C545

63 positive 0 neutral 9 negative

Based on 72 Reddit mentions

$275.71

Buy on Amazon

We may earn a small commission.

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 featuresmart featuresClear 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

Any affordable air purifiers with a legit air quality display that actually changes/responds in real time?

My Winix C545 units turn yellow when my cats take a mega dump (unit located next to a litter box) or red when my neighbor starts smoking (unit located near door). If on Auto, they will crank up to clean the air. I have had 6 of them for 2.5 years and have been very happy with them. I bought them all

...

BacardiBlue in r/AirPurifiers

May 12, 2026 2:27 AM

3

BEST AIR PURIFIER FOR THOSE STRUGGLING WITH ALLERGIES

I like Winix because of the home assistant integration. I have 3 of the C545. It has 4 stages of filtration.

portalqubes in r/AirQuality

May 24, 2025 9:18 PM

6

Best air purifier for a small space?

I haven't tried too many brands. But in my experience the blueair 411 and GermGuardian purifiers were horribly noisey. Any cheap air purifier I have bought ends up making a terrible high pitched noise that I cannot stand. My current air purifier is a Winix C545 and it's amazingly quiet compared to t

...

justwannascroll in r/AirPurifiers

June 20, 2025 7:39 PM

2

Coway Airmega AP-1512HH True HEPA

If you're in the USA it might be worth picking up two winix refurbished c545. They are pretty hard to beat at 69.99 tbh. I use them with the wifi off and no plasma wave currently have 2 of them and 2 of the c909 costco models in our house.

damien09 in r/AirPurifiers

August 20, 2025 7:27 AM

2

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

...

BacardiBlue in r/AirPurifiers

September 12, 2025 12:39 AM

2

Winix vs Coway? - Which brand is good for my small bedroom.

I have 6 of the Winix C545 units in part because they are smaller in scale and are close to the wall. I even have one on its side under a raised dresser. I've had them for 2.5 years and have been super happy, especially with the wifi scheduling feature which I like. And the mesh pre-filter catches a

...

BacardiBlue in r/AirPurifiers

January 3, 2026 4:29 PM

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

...

justwannascroll in r/AirPurifiers

January 9, 2026 10:09 PM

1

What is the best air purifier?

I literally just picked up some winix models (c545 and xq) been running them for less then a day and can already feel the difference in Phoenix. The air quality is so bad here that I couldn’t take it anymore and caved yesterday. I chose winix because of wifi capability, but I’m sure anything will be

...

dreamin777 in r/AirPurifiers

February 8, 2026 12:16 AM

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

...

Beneficial_Part5226 in r/AirPurifiers

February 11, 2026 1:31 PM

1

Top alternatives in Air Purifiers

#1