50 Pack- 3 Layer Disposable Protective Anti Dust Mask

50 Pack- 3 Layer Disposable Protective Anti Dust Mask: Total 50 PCS - Non-independent packaging, environmental protection, energy saving. Meltblown materials with block rate strong - This three-ply material is made up from a melt-blown material placed between non-woven fabric. The melt-blown material acts as the filter,Material density up to 99%...