Inspect a few SCBA units. They must be stored clean and free of cuts and abrasions. The facepiece should be connected to the regulator and tank. The tank should be full, the fittings free of rust, and the straps fully extended and ready for use. Check the hydrostatic test date stamped on the tank -- it should be within 3 yrs for composite, 5 yrs for steel. Check records to verify that inspections are performed every 30 days and have an SCBA inspector run through the procedure with you.