Large Room Coverage. Covers up to 490 sq. ft. HEPA Filtration. Professional-grade filtration captures up to 99.97% of particles down to 0.3 microns in diameter. Activated Carbon. A full pound of carbon absorbs chemicals, odors and gases. Internal UV-C Light. Our UV-C component is lab-tested to eliminate up to 99.9% of common bacteria.* CARB-certified to be completely ozone-free. Meditation Quiet. Sans is so quiet, it won't disturb you day or night. Lightweight and Portable. You don't have to move Sans around but it's easy to do so. 100% Lights-out Mode. Sans Mini goes completely dark, including all LED indicators. *Tested by an independent, accredited lab on the UV-C component under controlled laboratory conditions. Individual results in the assembled air purifier may vary.