(a) a face mask or respirator thati. is designed for human use,
ii. is made of multiple layers of dense material, but may have a portion in front of the lips made of transparent and impermeable material that permits lip reading provided that there is a tight seal between the transparent material and the rest of the face mask or respirator,
iii. is large enough to completely cover the nose, mouth and chin without gaping,
iv. has ear loops, ties or straps for securing the face mask or respirator to the head,
v. is for use in preventing the transmission of infectious agents such as respiratory viruses, and
vi. does not have an exhalation valve or vent, or