Winix C610 Air Purifier with Extra Filter

• Costco now offers the Winix C610 Air Purifier with a replacement filter, priced at $99.97 (regularly $130.00). Available in select areas only.
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Editor's Pick: Just set the air purifier to auto mode—it has a sensor that adjusts the fan speed automatically. This Costco model comes with an extra replacement filter inside the box, saving you the hassle of buying one within the next six months. Place it in the bedroom or living room, and on the low setting at night, it's practically silent.