Place of Origin:

Beijing, China

Brand Name:

HOLTOP

Model Number:

HOLTOP

Function:

Outdoor Anti-dust mask

Feature:

eletric automatic fresh air supply

Type:

cycling masks

filter:

5 layer

max airflow:

8L/S

power charge:

5V 1A

battery life:

6h

anti-haze:

>99%

color:

pure white, silver gray, pink