*UPDATE* 3/3/20. This is from the Costco Coupon Book MARCH 2020. Use the Winix Smart App to monitor indoor and outdoor air quality, set timers, and schedule. Select Costco locations have …
*UPDATE* 8/10/19. The C535 air purifier consistently monitors the air around it, offering a ‘Set and Forget’ convenience by automatically adjusting your air cleaner settings to meet the needs of …
