Biunixin Protective Mouth Muffle, Electric Mouth-Muffle Air Purifying Respiratory Portable Mouth-Muffle with Valve (Adult)

Description

Size:Adult Specification:Condition: 100% Brand New Item Type: Electric Mouth-Muffle Material: Silicone Optional Type: Adult, Children Maximum Noise: <30dB Charging Parameters: 5V/1A Maximum Air Volume: 2L/s cleaning air volume Working Environment: -20℃~50℃ Battery Life: 6HBattery Capacity: 650mAh Package List:1 x Electric Mouth-Muffle2 x Face Shell 2 x Silicone Ear Hook 1 x Storage Bag 1 x USB Cable 5 x Filter  or 1 x Electric Mouth-Muffle4 x Face Shell 4 x Silicone Ear Hook 1 x Storage Bag 1 x USB Cable 5 x Filter