Home Slickdeals Costco Members: Winix C909 4-Stage Air Purifier $159.99 + $5 S/H $164.99 Slickdeals Costco Members: Winix C909 4-Stage Air Purifier $159.99 + $5 S/H $164.99 By ARCOM - 4 March 2023 31 0 SHARE Facebook Twitter Go to the deal page: Costco Members: Winix C909 4-Stage Air Purifier $159.99 + $5 S/H $164.99