：50以下。 Caution: ●Do not use repeatedly. English: Catalog number: 67813 Features: ● Comes with a silicone adjuster to adjust the length of the strings ● Highly cushioned nose foam (nose pad) reduces leakage and increases comfort ● Aluminum nose clip can be adjusted to fit the shape of your face ● The strings are ultrasonically bonded and the joints are staple-free, providing high durability and safety without the risk of metal allergies. Applications: ● Dusty work ● Welding work Specifications: ● Particle collection efficiency (%): 95 ● Limit of use: 14 ● Inhalation resistance (Pa): 50 or less ● Exhaust resistance (Pa): 50 or less ● National certification number: No. TM814 ● Disposable dust-proof DS2 mask ● National certification DS2 standard: No. TM814 9600-DS2 ● 4-layer structure ● Head-mounted type ● Comes with an adjuster ● Limit of use: 14 hours ● Designated protection factor: 10 Caution: ● Do not use repeatedly. ●This product cannot be used in places where toxic gases, steam, or liquid particles are generated, or where the oxygen concentration is less than 18%.
