First Aid Exam Taken from the 2014 Northern Regional Mine Rescue Contest held in Peek 'N Peek, NY Progress Indicator: Question 7 of 30 7.  Check Curtains or Run-Through Curtains are designed to: Choices: Close manually after you have passed through them. Deflect the intake air current into a working area. Fasten at the top and one side only. All of the above.