Safety curtain
A safety curtain is a curtain in theatre at the front of the stage. It is made of material that will not burn. The safety curtain may be lowered during the intermission and after the performance. A safety curtain is there in case there is a fire on stage. It will stop the fire from spreading to the auditorium where the audience sits.
Safety Curtain Media
Safety curtain of St Martin's Theatre in London.
The ornately decorated safety curtain of the Vienna State Opera House.