Firstsing Portable Smart Necklace Air Purifier Negative Ioniser Oxygen Anion Ions Cleaner

High ion concertraction : ion concertraction can be higher than 1 million per cc.
Excellent sterilization effect .
Diaphanous , exquisite andportable .
Freshens air .
Dispel the static .
Prevent infection spreading .
Remover odor , kill bacteria .
Scatter cmoke and masses dust .

Places applied :
Any places , expecially mandatory for people who suffer from allergies , asthma and rhinitis.
Hospital , gym, bedroons , restaurants and bars.
Public places , office (especially for computer operator).
When traveling , going to school , have a meeting or showing.
Planes , cars , train.
Any close or air short places.