The Personal Mini Air Purifier with HEPA Filter is a compact size mini ionizer that small enough to be worn around your neck with the included strap, car, plane, home or office. Using ionic technology, the mini air purifier will improve the quality of air around and reduce pollutants such as bacteria, viruses, odors, smoke, and more. The mini air purifier with improve the air around you and reduce pollutants such as viruses, pollen, mold, dust, smoke, and odors. Using ionic technology the mini air purifier will emit negative ions and attach to pollutants to improve the air around. The unit has a built-in rechargeable battery that will last up to 240 hours and up to 8 hours with the fan. Simply choose your setting and the ionizer will begin working. This small air purifier can be worn on your belt, around your neck with the included strap, in your car, home, or office. The mini air ionizer has two settings. Choose to turn on the ionizer only or with the fan to increase air flow. The built-in battery can be recharged with the included USB cable. The lightweight mini air purifier can be worn around the neck with the included strap. The unit has a belt clip for your belt, purse strap, or shirt.