About this item<ul><li>Melt Blown Layer, Surgical Mask, Inbuilt Nose Pin</li><li>BFE >98% & PFE >95%: Our masks offers a higher Bacteria Filtration Efficiency of >98% @ 3.0 microns and Particulate Filtration Efficiency of >95% @ 0.3 microns. Free-Size & Comfort: The elastic spandex outer ear loops are comfortable for long-wearing sessions by people of all ages.</li></ul>