High strong materials and fire retardant,can prevent resistance,anti-agingIt works the moment you start work,this products adopts advanced circuit design.Permanent UV/IR protectionHigh performance solar cells and lithium batteryGrinding and weling mode can be chosen.
Masks materials:PPDark states:DIN9-13 free adjustment(Outside Variable)Response time(bright to dark):<1/30000 seconds(normal tempteratur conditions)Battery:lithium battery+solar cells,no battery change required.Working temperature: -5℃~55℃
Package Included:
1 x User Manual