Flat fold design for easy storage
Up to 95% filtering efficiency
Exhalation valve for quick dissipation of exhaled air
Ear-loop design for faster donning and doffing
Fabric headband without staples which are comfortable to wear in hot and humid conditions
Nose foam for comfort with spectacles
L-shape design, in accord with human body engineering, is comfortable and suitable for long time wearing. 3.5mm jack. Headphone wire can be freely telescopic, has moderate elasticity, easy to adjust and wear. Made of good quality ABS, strong, durable and wear-resistant. Suitable for retail, entertainment, hotel, restaurant, small area public security, and other business users.