That is very interesting... so differentiating between the availability of "hyperbaric" and "recompression" chambers would be important for an EAP.The vast majority of hyperbaric chambers in hospitals are not recompression chambers capable of treating divers. They are capable or 1.5 to perhaps 3 ATM, used for treating a number of maladys like CO poisoning and wound treatment. I would guess most are small, made for one person lying down.