[Features] It fits perfectly on the face, does not lose its shape, is durable and can be used comfortably for a long time.
[Use] Welding work, grinding/polishing work, pulverizing work, metal processing.
【specification】 Size: M Length (mm): 130 Width (mm): 133 Particle collection efficiency (%): 95 or more Usage time limit: 8 hours Intake resistance (Pa): 50 or less
[Specification 2] Duramesh 4-layer structure cup, head hanging type PVC free Ministry of Health, Labor and Welfare National Test DS2 Passed Product (No. TM56)