Rat, just to clarify, EACH individual must buy and install the bladder, the pump assembly would either be carried by the EMT, OR you could have your own hanging from the window net.
Any sane person could use this system without instructions if they are smart enough to unbuckle the chin strap first. Hopefully our safety folks and any of Wendovers finest can understand a simple bulb air pump.................... somebody please bring this up at your club meeting or the next SCTA meeting.
I am in no way trying to make this manditory, but having C5,6 and 7 already fused, I will have one you can bet your bippy................................ Bob