AMIA TECH Personal Wearable Air Purifier Necklace Mini USB Portable Air Freshener Ionizer Negative Ion Generator Low Noise

This air fresher creats up to 5,000,000pcs / cm³ negative lons Helps to eliminate PM2.5 air pollutants, smoke, odors, dust,etc. Silent operation and easy to use No extra filter needed If you want to have a better immune system in the flu season, stop allergies from bothering you, boost your metabolism, this portable device is a reasonable option. Product Specification: Working voltage: DC5V Power: Less than 0.5w Charging time: 1 hours Working time: 10 hours size:79.5x50.5x21.2mm Material:ABS colour:Black / Pink / White Package Contents: 1 * purifier 1 * usb cable 1 * lanyard 1 * Car clip holder 1 * English manual