Firstsing Portable Mini necklace remove smoke filter PM2.5 personal ionizer air purifier

Remove bad smell, remove the odor, icreasing fresh air and setting dust.
"S" style LED indicator.
Sterilization function.
Low noise.
Anion:5000 000 pcs/cm3
Used in kitchen ,room and toilet.
Negative ion generator pulse and then oscillation electrical appliances then the low voltage into a negative DC high voltage.
The use of carbon fiber brush tip DC voltage to generate high voltage rapid release of a large number of negative ions.
Negative ion can be attracted to pollutants in the air with positive ions and become into sediment.