Home Slickdeals Winix C909 4-Stage Air Purifier with WiFi & PlasmaWave Technology – $159... Slickdeals Winix C909 4-Stage Air Purifier with WiFi & PlasmaWave Technology – $159 + $4.99 Shipping By ARCOM - 8 September 2022 38 0 SHARE Facebook Twitter Go to the deal page: Winix C909 4-Stage Air Purifier with WiFi & PlasmaWave Technology – $159 + $4.99 Shipping