frontpagec0ld8 posted Apr 01, 2026 05:38 PM
Item 1 of 2
Item 1 of 2
frontpagec0ld8 posted Apr 01, 2026 05:38 PM
Costco Members: Winix C909 4-Stage Air Purifier
+ $5 S&H$160
$200
20% offCostco Wholesale
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It is definitely an unnecessary feature, as it doesn't help achieve its core function. But It is probably a marketing feature and also a way for the company to improve monetization. An app will probably push filter subscriptions. I am going to research privacy concerns with this product because of all this data being created. I have a suspicion that they could be selling data to the data brokers.
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It is definitely an unnecessary feature, as it doesn't help achieve its core function. But It is probably a marketing feature and also a way for the company to improve monetization. An app will probably push filter subscriptions. I am going to research privacy concerns with this product because of all this data being created. I have a suspicion that they could be selling data to the data brokers.
It is definitely an unnecessary feature, as it doesn't help achieve its core function. But It is probably a marketing feature and also a way for the company to improve monetization. An app will probably push filter subscriptions. I am going to research privacy concerns with this product because of all this data being created. I have a suspicion that they could be selling data to the data brokers.
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...but now that I've done a quick search, there are several vids bearing replacements and it uses standard 608ZZ bearings which I just happen to already have around. Suppose I'll give that a shot before dropping $165.
Edit: Easier said than done, looks like it'll require some desoldering to get to one of the bearings. I can probably manage but not a quick/easy fix.
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The C909 from Costco comes with 2 years of filters, and the return policy can't be beat if you happen to need it.
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Get this one. The Daikin is no longer on sale. The Winix C909 is also more powerful and covers a much larger room area (it's better to go over than under). The main thing the Daikin had going for it was the 50% off price and a humidifier (if you needed one).
And of course, the Costco return policy can't be beat if you happen to need it.
It's quiet most of the time, but something feels a bit off?! or maybe it's just me since this is my first air purifier?! It doesn't seem like it's pushing much air.
One second the sensor says the air is clean, the next it goes crazy and the fan ramps up for a couple of minutes, then it goes quiet again. Is that normal?
Just wanted to see if this is normal behavior for a device like this. Thanks.
Turbo (247CFM), Standard (124CFM), Low (78CFM), Quiet (57CFM)
Room Size: 350 ft2
Smoke CADR: 226
Dust CADR: 227
PM2.5 CADR: 226
Pollen CADR: 230
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