full face mask with free adjustable headgear gel full face mask careshine specification:<br> color: transparent<br> size:as pictures shown<br> material: silica gel<br> working temperature: +5°c~+40°c<br> working humidity: ≤93%<br> store temperature: -20°c~+55°c<br> store humidity: ≤93%<br><br> package include:<br> 1x mask<br> 1x headgear