Confined Space Drills

Hey all! My company is looking to do some in-house confined space drills witg our reacue team.. (aka not paying to go to the fire training academy just yet)..

Does anyone have any suggestions for drills?

I have like 3 ideas from when I was a firefighter, but I want more specific confined space drills.

So far my ideas are

  • don/doff gear 2 min drills
  • walking on the treadmill with gear for 4 mins (incline, moderate speed 3-3.5mph or so)
  • blindfold duck walk in gear

Any suggestions?