#1
Winix
9800
15 positive 0 neutral 1 negative
Based on 16 Reddit mentions
$239.99
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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.
Winix c909 or Medify air ma-25?
C909 all day long. It has a MUCH higher CADR (Clean Air Delivery Rate). The MA-25 is not comparable at all. I have several C909s in my classroom and office. They've been totally reliable and I think the C909 is one of the best bang for the buck air filters on the market. Plus, with Costco you get a
...paw_pia in r/AirPurifiers
October 9, 2025 9:48 AM
4
Help with finding a good air purifier
Winix 9800 its like an upgraded 5510 / 5500-2 (older ver goat)or if you have a costco Winix c909
jechhh in r/AirPurifiers
May 5, 2026 2:36 AM
2
Any disadvantage buying thru Amazon?
I literally just had a Winix 9800 delivered 2 days ago via Amazon & USPS…arrived and working perfectly
mSantiago80 in r/AirPurifiers
May 10, 2026 12:13 PM
1
