The protective cover can provides a barrier in front of the face. Can be used in combination with respirators, goggles, masks and other protective equipment. Practical uses to catering services, hospitals, grocery stores, retail stores, public places. Mask function: lightweight design. Ventilation design reduces fogging. It is made of PET sheet. Adult size is adjustable. Antifogging coating. The weight is very light, no pressure when wearing for a long time. 13" L x 8 11 / 16" H.