An automatic welding mask with manual setup of the dimming level DIN 9-13. There is a width adjustment screw and easily replaceable polycarbonate glass plates which protect the automatic flter. The work temperature is from -5°C to +55°C. The mask uses solar energy, batteries are not necessary. The weight of the mask is 0,49kg. There is a sensor regulating the dimming speed - light/
dark 0,05 milliseconds, and dark/light 0,6-1 second.