Personal Portable Negative Ion Air Purifier AS-300

Product Features: • Can release 50 million ions per cubic centimeter. • Effectively blocks: PM2.5, dust, pollen, smoke, viruses, and allergens. • Effectively prevents coronaviruses. • Effectively blocks airborne particles ranging from 40 to 3000nm. • Can operate up to 28 hours and can be charged via USB. • Portable, compact, lightweight with a neck strap for wearing. • Suitable for use on airplanes, in movie theaters, waiting rooms, and other places. • Silent, fanless, and filter-free.