Made with advanced ionic technology, emits a constant stream of healthy negative ions that flush airborne pollutants from your personal space This high-quality device comes in a stylish and convenient leather case that fits in all bags and suitcases, for clean and hygienic storage Electrostatic purification creates a 3-foot sphere of cleaner, healthier air around your head, ridding you of the atomic-sized pollutants that traditional air purifiers leave behind The product is easily recharged with the included USB cable; It can be worn around your neck or placed freely on your nightstand, so that the air around your pillow is clean and free of pollutants. 1. Negative ions effectively purify the air and remove PM2.5, dust, harmful substances, viruses, bacteria, etc. 2. Especially suitable for children, the elderly, pregnant women, and people with pollen allergies and odor sensitivity; 3. Effectively control bacterial and other infections around people and stay away from away from