Blueair Air Purifier, Blue Pure 211i Max, 601+ sq ft

Fast. Quiet. Simply Smart. Our signature performance is now even better . delivering more cleaning power. Blue Pure 211i Max features enhanced performance with our proprietary HEPASilent? technology . which combines electrostatic and mechanical filtration to?capture at least 99.97% of airborne particles?down to 0.1 micron in size. Even the tiniest particles . such as viruses and bacteria . are captured . along with larger household particles such as dust . pollen . pet dander and smoke.