Featuring an advanced 5-layer filtration system made with ultra-high-grade, electrostatically charged melt-blown polypropylene, the BNX mask is up to 50% more breathable than the minimum ...

The active layer claims to be made from electrostatically charged melt-blown polypropylene, a composition that the maker claims is ultra-breathable. These are medium-small sized masks. $20 at ...

The race to acquire materials for masks has also intensified, particularly for melt-blown fabric used as filters, the most essential part of the mask. Prices of quality materials that boast a high ...