Sell Wearable air purifier necklace mini personal portable air freshener ionizer / 20 million negative ions low noise best price

This air purifier product in our shop has a unique quality inspection report from the Guangdong Microbiological Testing Center of China. The air purifier certified by the authoritative organization is a truly reliable product. The most lasting mini air purifier in the whole network. It'll keep protecting you and your family whole day without a rest. Working hours: The lv1 mod will last for approximately 72 hours, and lv2 mod will last for approximately 60 hours. air purifier Function: Dressing dust removal Power supply: USB Rated frequency: 5 (Hz) Environment: Household control method Press button for 10m2 Net weight: 35g Gross weight: 0.14kg Product size: 68 * 33 * 18mm Rated voltage: DC 3.7V Rated power: less than 1W Noise: less than 5dB Negative ion concentration: The first gear is 5 million PCS / cm3, and the second gear is 20million PCS / cm3.