Portable Anion Air Purifier

Features:
Negative ions trap suspended particles in the air, such as PM2.5M, formaldehyde, pollen, secondhand smoke, etc.
Fully charged 0.5 hours, high-efficient work for 24 hours, meeting the purify needs of whole day.
Release anion at 1 cubic centimeter range for safe breath at any time.
Low noise when working, not interfere your work, study and sleep.
With a portable strap, it can be worn at neck or hang on bag.