ROCKBROS Cycling Face Mask Filter PM2.5 Anit-fog Breathable Dustproof Bicycle Respirator Sport Protection Dust Mask Anti-droplet Color:LF2014-1 2 filters no need wifi connected

no need wifi connected

millions of pictures songs and videos can be stored

Standby Time: 7+ days

Material: ABS Plastic + Electronic Components

Fast Charging: Nonsupport

ROCKBROS Cycling Face Mask Filter PM2.5 Anit-fog Breathable Dustproof Bicycle Respirator Sport Protection Dust Mask Anti-droplet Color:LF2014-1 2 filters no need wifi connectedProduct Detail: Brand: ROCKBROS Name: Activated carbon protective mask Material: Mesh Diving Fabric Please be kindly notedthe listed product is produced and distributed abroad and subject to the laws of its country of origin. Description: The mask can be used for more than 2 years, and the filter is recommended to be replaced every 30 days. The frequent or severe haze area is subject to the situation (the filter becomes black or damaged, please