Catalogue number: YFS-30 Features: ● Simply attach it to your mask to improve its performance. ● Its collection ability does not decrease easily, so it can be used repeatedly. ● Its nano-level porous structure blocks droplets. Uses: ● To improve mask performance. ● To protect against viruses. ● To protect against colds and hay fever. Specifications: ● Color: White ● Height (mm): 128 ● Width (mm): 222 Material/Finish: ● Polypropylene
