Winix True HEPA 4 Stage Air Purifier (C545) w/ Wi-Fi & Extra Filter in-store Costco Start 9/29 $100 By admin | September 21, 2021 7:24 pm EST 0 Comment Starting 9/29, it is back at $100 Winix C545, in-store only, no more online orderhttps://www.costco.com/winix-true…62892.html