Winix
9800
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.
Some dobuts before buying
They're not great to use if the inside is very humid... but if that's not an issue it's definitely worth getting one or two. Get a larger one if you can, like a Winix 9800 (cheap filters and large treatment space) or Coway 400 and run it on the highest setting you can handle noise wise... don't use
...mavad90 in r/AirPurifiers
November 23, 2025 10:50 PM
4
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
Confused between Winix C909 / 5520 / 5510
Yep. It's vaguely mentioned buried in all the text under the pictures. It doesn't say the charcoal ones but they were included as well. A "set" normally includes for the C909 one HEPA and four charcoals. WINIX Filter The C909 is basically the Winix 9800 but made for Costco. The grate is different in
...kidqwik in r/AirPurifiers
June 26, 2025 3:23 PM
2
Great purifiers with logical/easy filter-replacement systems?
After three days of constant indecision I think I’m proceeding with the Winix 9800 or C909, I cannot fathom going through what you did, being my first air filter and paranoid about toxic anything.
AnonNikki in r/AirPurifiers
November 17, 2025 9:02 PM
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
Air Purifier suggestion pls
None of these. They just look fancy, but dont actually do anything. If you need a fancier looking devices that actually work look at Coway or Winix. Something like: https://www.amazon.ca/Coway-Airmega-400S-App-Enabled-Technology https://www.amazon.ca/9800-Purifier-Quality-Captures-Allergies/dp/B09KN
...grabber4321 in r/AirPurifiers
May 19, 2026 6:28 AM
1
Top 11 Whole House Air Purifiers in 2026
Best overall: IQAir HealthPro Plus This is widely considered the gold standard for portable whole-home air cleaning. It uses HyperHEPA filtration that captures extremely fine particles, making it ideal for allergies, smoke, and asthma. It’s powerful, built for long-term use, and consistently ranks a
...One_Mess525 in r/HomeClimateTech
May 18, 2026 7:26 PM
1
Top 11 Best Air Purifiers for Mold Removal in 2026
Best overall: IQAir HealthPro Plus This is widely considered one of the most powerful residential air purifiers for mold and allergens. It uses HyperHEPA filtration that captures extremely fine particles beyond standard HEPA. It’s especially effective for people with strong mold allergies or respira
...One_Mess525 in r/HomeClimateTech
May 18, 2026 7:32 PM
1
Top 10 Best Air Purifier for Pet Dander in 2026
The Top 3 Overall Champions Best Overall: Levoit Vital 200S The current gold standard for pets. It features a U-shaped air inlet that prevents pet hair from clumping and clogging the intake. Its pre-filter is specifically designed to be easily popped out and rinsed. Best High-Performance: Winix 9800
...One_Mess525 in r/HomeClimateTech
May 20, 2026 9:09 PM
1