Home Slickdeals 2-Pack Blueair Blue Pure 211+ 3-Stage Air Purifiers & 4 Washable Pre-Filters... Slickdeals 2-Pack Blueair Blue Pure 211+ 3-Stage Air Purifiers & 4 Washable Pre-Filters $349.99 ($174.99 each) + Free Shipping [Valid 12/2 only] By ARCOM - 2 December 2019 123 0 SHARE Facebook Twitter Go to the deal page: 2-Pack Blueair Blue Pure 211+ 3-Stage Air Purifiers & 4 Washable Pre-Filters $349.99 ($174.99 each) + Free Shipping [Valid 12/2 only]