Sell air purifier necklace♚New Design Personal Wearable Air Purifier Nec best price

New Design Personal Wearable Air Purifier Necklace 1. Small size, can be carried with you. No need to replace consumables 2. Silent operation, suitable for use in multiple scenarios 3. Adjustable gears, switch according to different environments 4. Energy saving and high efficiency, it can run for about 40 hours on a single charge 5. Environmental protection without consumables Color: white, black, pink Material: brand new environmental ABS+PC Voltage: DC5V Power: ＜1W Current: ＜50mA Battery capacity: 700mAh Negative ion concentration: 8000-12000W/cm3