Functional Benefits Protection from microorganisms shed in liquid droplets and aerosols from the wearer's mouth and nose. Manufactured by Ultrasonic Technique Ultrasonic Fixed Elastic Earloops ensure superior strength and durability thoughout the day Bacterial Filtration Efficiency @ BFE 99% 3 Layers containing Spun Bond Materials at outer and inner layout, and Melt- Blown Filter material in the middle The melt-blown material acts as the filter that stops microbes from entering or exiting the mask Custom design features well calculated pleats/folds to enhance comfort and fit, extended coverage from nose bridge to Chin bottom