ITEM NAME:Wearable Air Purifier Cleaner Portable Negative Ion Air Freshener Remove Fo L2Z7 Wearable Air Purifier Cleaner Portable Negative Ion Air Freshener Remove Fo L2Z7 The working principle of:negative ions Battery:260mah Rated power:1W Function:Sterilization, defogging, formaldehyde, PM2.5, secondhand smoke allergen Application area:Car, House, Office, Hotel,Travel,Carry 1. Removal of Formaldehyde 2. Removal of PM2.5 3. Removal of benzene 4. Removal of other harmful substances 5. Removal of TVOC/Harmful microorganisms 6. Removal of harmful gases, smoke, bacteria, mold ,allergens,odors, dust, pollen, pet hair, and other particles from the vehicle color: White Material: ABS Package Contents: 1* Air Purifier 1* USB Cable.Function:Sterilization, defogging, formaldehyde, PM2.5, secondhand smoke allergen. 1 Air Purifier. Removal of Formaldehyde. The working principle of:negative ions. Rated power:1W. Removal of TVOC/Harmful microorganisms.