Home Slickdeals Winix C545 4-Stage Air Purifier w/ WiFi (Refurbished) $70 + Free S&H... Slickdeals Winix C545 4-Stage Air Purifier w/ WiFi (Refurbished) $70 + Free S&H w/ Amazon Prime By ARCOM - 5 March 2021 69 0 SHARE Facebook Twitter Go to the deal page: Winix C545 4-Stage Air Purifier w/ WiFi (Refurbished) $70 + Free S&H w/ Amazon Prime