Feature:
Small size, can be carried with you, Environmental protection without consumables.
Powerful purification of formaldehyde/smoke.
Effectively block viruse and block PM2.5.
No consumables needed, environmentally friendly.
Silent operation, suitable for use in multiple scenarios
Adjustable gears, switch according to different environments.
Two levels of negative ion concentration can be adjusted: 8 million / cm3, 12 million / cm3.

Specificatins:
Name: Lavalier Type Negative Ion Purifier;
Colour: Black/White;
Material: ABS;
Size: 7.52.52cm;
Battery capacity: 300mAh;
Power supply : Micro USB;
Charging time: About 30 minutes;
Input voltage: DC3.7V~DC5V/ 1.5A;
Input current: 15- -20m A Max;
Output voltage: -DC2.0KV~-DC4.0KV;
Negative ion concentration:> 5106PCS/cm3 at 10cm;

Package Contents
1 Air Purifier;
1 Charging cable
Product Attributes:

• Weight (lbs.): 0.22 lb