1. Create a fresh space Negative ions have the functions of generating active oxygen, purifying air, and eliminating oil fume Dust, etc. have a great impact on human health; negative ion purification This night light can be used in bedrooms, living rooms, study rooms, bathrooms and more. In the living area, create fresh air at all times and protect your health. 2. Quiet, no interference, no radiation <10dB Work quietly, release negative ions without noise; a steady stream of negative ions not only provide you with a clean and fresh sleeping environment; negative ions also help to improve your sleep quality and protect your health; the air purification night light does not produce any radiation and does not harm endanger your health. no battery provided Power supply method: wired Shipment Quantity: 1 piece (Package content: only the above package content, other products are not included.) Size: 113*40*47.5mm (Reminder: The size is measured by hand, please allow 1-2cm measurement error) color: White (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)