What do you call a gas mask that only covers the mouth, not eyes or head.?

i have a gas mask that doesn't cover the top of the head, or the back, and it doesn't cover the eyes.


this gas mask only covers my mouth, what do you call that?





(as in does the gas mask i bought, have a different name than a regular gas mask?)What do you call a gas mask that only covers the mouth, not eyes or head.?
A gas mask is a mask worn over the face to protect the wearer from inhaling ';airborne pollutants'; and toxic gases. The mask forms a sealed cover over the nose and mouth, but may also cover the eyes and other vulnerable soft tissues of the face.











I couldn't find that the open face gas mask has any different name than a hooded one.What do you call a gas mask that only covers the mouth, not eyes or head.?
That would be a respirator.
Like the one dentist wear?





Surgical Masks.