Catalog number: 57541 Features: ● A 4-ply pleated surgical mask that complies with the ASTM (American Society for Testing and Materials) standards for medical mask materials. ● Reliable Japanese-made pleated type (with nose fit). Uses: ● For general work. ● For protection against colds and pollen. Specifications: ● Size: Regular ● Height (mm): 90 ● Width (mm): 175 ● Color: White ● Structure: 4 layers ● Not individually wrapped ● Ear hook type ● Complies with US standard ASTM-F2100-19 Level 2
