Home Slickdeals Winix True HEPA 4 Stage Air Purifier w/ Additional Filter – $100... Slickdeals Winix True HEPA 4 Stage Air Purifier w/ Additional Filter – $100 + $3.99 shipping – COSTCO By ARCOM - 5 July 2021 67 0 SHARE Facebook Twitter Go to the deal page: Winix True HEPA 4 Stage Air Purifier w/ Additional Filter – $100 + $3.99 shipping – COSTCO