Protective mask is a kind of industrial protective mask used to
protect eyes and face from dust, chemical substances, hot gas,
poisonous gas, debris and other harmful substances in the face, it
is installed on the left and right side of the elastic head clip
with a tooth knob, on the tooth knob with a large arc thin curved
transparent cover.Large arc thin curved surface transparent cover with a toothed knob
on the elastic head clip can be rotated on the top of the face or
head.It can be used in conjunction with respirator, dust respirator and
working cap to achieve the purpose of comprehensive protection.![](http://img.everychina.com/nimg/3a/3f/a9d09c0d95780a0dbaa2a8f153b2.jpg)