Blueair Genuine HEPASilent Replacement 7400 Smart Filter for 7440i, 7470i Air Purifier Removes 99.97% of Pollen, Dust, Pet Dander, Mould, Bacteria & Viruses Activated Carbon Reduces VOCs, Chemicals

SUPERIOR QUALITY HEPASILENT FILTER: The combination particle and carbon filter removes 99.97percent of airborne particles, down to 0.1 microns in size with HEPASilent filtration; HEPASilent technology is unique to Blueair and not available in alternatives RECYCLABLE AND ENERGY EFFICIENT: Genuine Blueair filters are 100percent recyclable, the frame and filter are polypropylene, which is the same material as caps on plastic bottles; HEPASilent filtration allows our filters to be more energy efficient Equipped with a smart RFID chip to accurately monitor filter status and automatically reset the filter replacement indicator when a new filter is installed. The smart sensor algorithm accurately calculates how polluted the air is and tells when it's time to change the filter (6-12 months). When it's time to replace the filter, the filter indicator on the unit will turn red and the Blueair app will send a notification. Protection against allergens and germs Accurate tracking of life and replacement: optimises filter use, avoids unnecessary replacement. Algorithm tracks pollutant values, calculates filter life. Maximum 1 year lifespan., Weight: 2.20462262 pounds, Manufacturer: Blueair