It is durable and comfortable to use.
The side band type is easy to put on and take off, and the belt length can be automatically adjusted. Particle collection efficiency: Average 99.5%
Intake/exhaust resistance: Average 23.5Pa
Weight: 11g on average
Usage time limit: 16 hours
National Certification Number: No. TM281
Quantity: 1 box (20 sheets)
Category: DS2
