Blueair’s most advanced filter, SmartFilter is designed to deliver superior performance. The technology allows the air purifiers to deliver more clean air with less noise and less energy. The electrostatic charged particles stick to the filters efficiently, and the activated carbon integrated in the filters adsorbs any odors and gases. This HEPASilent Ultra technology combines electrostatic and mechanical filtration to remove 99,97% of airborne particles down to 0.1 micron such as allergens, dust, pollen, mold, dander, viruses & bacteria’s, VOCs, and odors.