Gets rid of 99% of harmful particlesBreathe easily thanks to the Blueair HealthProtect 7770i Smart Air Purifier. A HEPA Silent Ultra filter gets rid of 99% of germs and tackles other harmful particles, such as dust, pollen, mould or odours. 24/7 protectionEven in standby mode, the purifier checks the air quality and kills the bacteria and viruses it detects. And the air circulates in all directions, so you can be sure you'll get the best air quality in each corner of the room. See and control everything An LCD display gives you air analysis in real time - including the concentration of different particles, temperature or humidity. You can control your 7770i using the Blueair app. And thanks to a chip inside the filter, the app sends you a notification when its time to replace it. BLUEAIR HealtHProtect 7770i Smart Air Purifier Appliances, Fans,heating&airtreatment, Airpurifiers.