The efficiency of polarized-media electronic air cleaners increases as they load, providing high-efficiency filtration, with air resistance typically equal to or less than passive filters. Polarized-media technology is non-ionizing, which means no ozone is produced. Air purifiers may also be used in industry to remove impurities from air before processing. Pressure swing adsorbers or other… Continue reading Levoit’s True HEPA Filter Air Purifier Is ‘Whisper Quiet’ and on Sale