Blueair Open Box Blueair Pure 311i Max 100 - 120V PAC Filter Fog •Most awarded air purifier brand in the US*; Blueair’s #1 selling air purifier line; Blue family’s new Pure Max series with our proprietary HEPASilent performance now even better with up to 83% faster cleaning and 50% less noise.†•Let’s clear the air... $103.99 Was: $229.99 Was: Add to Cart