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Tel06c 3.4K Views
Mar 25, 2026 12:49 PM

WINIX 5520 Air Purifier for Home Large Room up to1882 sq ft with Air Quality Monitor True HEPA $139.99

$140

$250

44% off
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Mar 25, 2026 1:00 PM
104 Comments
Joined Dec 2014
MarySaMar 25, 2026 1:00 PM
104 Comments
Housefresh on YouTube had a good video recently about the difference between this one and the 5510.
Mar 25, 2026 1:16 PM
297 Comments
Joined Dec 2011
dealhunter010Mar 25, 2026 1:16 PM
297 Comments
Same price on Amazon as well: https://a.co/d/00JdMLY6
Mar 25, 2026 3:03 PM
325 Comments
Joined Nov 2020
SmilingNest9368Mar 25, 2026 3:03 PM
325 Comments
Quote from MarySa View quoted comment :
Housefresh on YouTube had a good video recently about the difference between this one and the 5510.
Iirc they're identical just look different
Mar 25, 2026 3:56 PM
120 Comments
Joined Feb 2015
loganmjungMar 25, 2026 3:56 PM
120 Comments
How does this compare to the C909 at Costco? If I had to buy one, should I just shell out for the 909?
Mar 25, 2026 9:47 PM
1.5K Comments
Joined Mar 2011
gjsneptuneMar 25, 2026 9:47 PM
1.5K Comments
5510 is the same and cheaper.
Mar 27, 2026 7:41 PM
7.7K Comments
Joined Dec 2011
SAN_MARINOMar 27, 2026 7:41 PM
7.7K Comments
Quote from loganmjung View quoted comment :
How does this compare to the C909 at Costco? If I had to buy one, should I just shell out for the 909?
I have the same question too.
Mar 30, 2026 1:36 AM
130 Comments
Joined Nov 2018
techswreckMar 30, 2026 1:36 AM
130 Comments
Quote from SAN_MARINO View quoted comment :
I have the same question too.
Here's an Ai overview

**Winix C909 vs Winix 5520**

**Winix C909**
**Pros:**
- Bigger room coverage.
- Higher CADR, so it cleans air faster.
- Better choice for larger spaces, smoke, pets, or frequent odors.

**Cons:**
- Usually the more expensive option.
- Larger unit, so it takes up more space.
- May be more purifier than you need for a small room.

**Winix 5520**
**Pros:**
- Smaller and better suited for mid-sized rooms.
- Good all-around performance.
- Includes smart features like auto mode and WiFi/Alexa support.

**Cons:**
- Lower CADR than the C909.
- Smaller room coverage.
- Not as strong if you want maximum air-cleaning power.

**Bottom line:**
Go with the **C909** if you want stronger performance and bigger coverage. Choose the **5520** if you want a solid purifier for a smaller room and don't need the extra power.

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