Rechargeable Air Purifier with 150 Million Negative Ions, White

This air fresher creats up to 150millon / cm negative lonsHelps to eliminate PM2.5 air pollutants, smoke, odors, dust,etc.Silent operation and easy to useNo extra filter neededIf 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:Name: Air Purifier NecklaceWorking voltage: DC5VPower: Less than 1wNegative ion concentration: 150millon / cmBattery capacity: 750mAhCharging time:2hWorking time:60hColour: WhiteMaterial: ABSSize: 76 x 24 x 18mmPackage Contents:1 x purifier with lanyard1 x usb lineOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.