Where is your desk stationed?  Is it in the room or in another room away from the chambers?  If it is in another room away from the chambers how quickly can you react to an emergency?  Do you have the gas valves in reach or are they in the treatment room?  Is always better to be stationed between the chambers.  1 Tech per two chambers and always 2 techs in the room during treatments.  Reason being, the patients are trusting us to be there, having someone between the chambers gives them a sense of calm.  Also, in the event of any emergency we need to be in the room, safety is always first and top priority.  With the events that took place in Ocean Hyperbarics down in Florida, safety is important and every second counts.