| 摘要 |
A Cold or Inclement Weather Exposure Mask is designed to fit snugly aroun d the face, head, and neck. The mask serves vital needs of warmth and air fl ow. A raised, malleable chamber covering the mouth and nose provides a breat hing space to allow normal breathing while keeping the face warm and dry. Th e chamber is affixed to a fabric panel made of a water and wind resistant, n on- irritating, comfortable, and stretchable material. Velcro® or fastening means on the panel holds the mask in place around the wearer. The chamber in cludes multiple apertures which allow fresh air to pass to the wearer after it is mixed with warm, humid, exhaled air. The apertures also exhaust air an d condensation. A raised lip further aids in the removal of condensation. A valve system optionally regulates the flow of air. Colors and patterns selec tions allow adaptation to all outdoor labor and recreation uses. |
