Abstract: The present invention discloses an auto darkening mask which comprises a weld cap and a filter mechanism, wherein the filter mechanism includes a lens module, a connecting line and a regulating system; and the weld cap is provided with a visible window. The lens module is assembled inside the weld cap and is opposite to the visible window of the weld cap. The regulating system is located at the outside of the weld cap and connected with the weld cap, and the lens module is connected with and controlled by the regulating system through the connecting line. The auto darkening mask is very convenient to regulate and saves labor.

Abstract: The present patent application discloses a weld mask, which has a weld cap, a protection plate, a filter and a press block. The weld cap has a through-hole. A scaleboard pedestal is installed on the edge of the through-hole. The scaleboard pedestal raises towards the inside of the weld cap and encompasses the through-hole. The protection plate, the filter and the press block are installed in the scaleboard pedestal successively. A raised snap-gauge is installed on the outside of the scaleboard pedestal. The snap-gauge includes a hole. An elastic snap joint is installed on the edge of the press block. The snap joint includes a hook and a reducible resilient trip. The top and bottom of the resilient trip connect with the press block and the hook respectively.