The offered N95 Face Mask With Valve is made available by us for use in the various commercial and medical places.  The N95 respirator masks that have an exhalation valve filter the air you breathe in but not the air you breathe out. People may prefer these masks since it's easier to exhale, your face may stay cooler, and less moisture will build up inside the mask. Valves are there to make breathing easier, but while the N95 Face Mask with valve do protect the wearer from exposure to airborne particles, if the wearer coughs or sneezes, infectious droplets could travel through the one-way valve.