Select Costco Wholesale Locations (link for reference only) have for
Members: WINIX C610 4-Stage True HEPA Air Purifier w/ Additional Filter on sale for
$99.97.
- Note: Offer is valid In-Store only for Costco Members and availability varies by location. You may check Costco Warehouse In-Store price by using the Costco Mobile App, going to "Warehouse" > "Search warehouse inventory > Enter Item Number 3449587.
Thanks to community member
mkdenar for finding this deal.
Features:- Up to 2 years of filtration: two all-in-one filters included
- AHAM verified 380 sq. Ft.: cleans rooms up to 1840 sq. Ft. In 1 hour
- Winix true HEPA: captures up to 99.99% of airborne allergens including pollen, smoke, and pet dander
- Auto mode: built-in air quality sensor measures and adjusts fan speed in real-time
- Air quality indicator: visual indicator displays real-time air quality in the room
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12 Comments
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This model does come on sale for the same price, both in-warehouse and online with $5 shipping, so if you wait it might come on sale for you to have shipped to you. It is funny that the normal sale price doesn't attract attention, but as soon as it's on clearance for the same price, a deal becomes popular. Same thing happens at my local Costco as well, people see clearance and they jump.
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Last Quarter (Q3 Fiscal 2026)
Earnings Per Share (EPS): $4.93 reported versus $4.94 expected
Total Revenue: $70.53 billion, beating the $70.12 billion estimate
Sales Growth: Same-store sales grew 6.6%, and digital e-commerce sales jumped 20.4%
The 3.5 billion dollar increase in warehouse revenue quarterly from Q3 25 to Q3 26 is a pretty strong indicator that all Costcos will Spirit Halloween stores any day now.
These too? I have 5 of the box shaped Winix and 1 of them has lasted a long time no issues, one makes only a little noise, one is loud, and two scream 😂 I was hoping the cylinder style would hold up better. I saw that people do the fan bearings with soldering just haven't got around to trying that.
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