Home Slickdeals Winix C535 True Hepa Air Cleaner $99 w/ Costco Membership at Costco.com... Slickdeals Winix C535 True Hepa Air Cleaner $99 w/ Costco Membership at Costco.com & $79 w/ new Google Express account with Costco Membership!! By ARCOM - 5 August 2019 141 0 SHARE Facebook Twitter Go to the deal page: Winix C535 True Hepa Air Cleaner $99 w/ Costco Membership at Costco.com & $79 w/ new Google Express account with Costco Membership!!