20140190476 | SEAL FOR FULL FACE MASK - The outer periphery of a face mask has a first ribbed seal member located on an outward facing surface of the mask and configured to mate with a second ribbed seal member located on an inward facing surface of a periphery of a face opening in a hood that fits over the user's head during use. The ribbed seal members mate to form fluid tight seal. A skirt is connected to the mask and extends around the outer periphery and along a portion of the inside surface of the mask in order to form a contact seal with the user's head during use. | 07-10-2014 |