-More than 2500 million negative ions
-Necklace and back clip double design
-Reduce pollutants like smoke/ dust/ formaldehyde
-Reduce PM2.5
-Reduce the risk of Respiratory Diseases and Allergies
-Purifying air and decompose virus and germs
-Higher negative ions production
-Silent operation and no harmful radiation
-Lightweight design for easy carrying (weight 18g)
-Rechargeable via USB
-Operation time can be more than 20 hours
-International certified (SGS, CE, FCC, ROHS, MSDS, UN38.3)