Sorry the point that I am trying to ascertain is Assuming that the kit is compatiable and that the safety of the diver can be assured and that he is in OTU requirenments, or near enough Is it better to administer the O2 at 6 or 3 meters of on the boat. My mind says take him to 6 or 3 m and do it their, because this is akin to what the chamber will acheive although no where near as effective, but at least it is a step in the right direction. And for those that are interested we have both a demand valve (fully functional) and a Oral nasal mask that can be put on demand or free flow for the O2 kit. The bottle is also a 7 litre 2700psi. Tom. ******************************************************************** _/_/_/ _/_/_/ _/_/_/_/ tow@ua*.nb*.ac*.uk* _/ _/ _/ _/ _/ _/ PROUDMAN OCEANOGRAPHIC LABORATORY _/ _/ _/ _/ _/ BIDSTON,MERSEYSIDE _/ _/_/_/ _/ _/ ENGLAND. L43 7RA I have to go down to the sea again, to the call of the running tide Tis a wild call but a clear call, that cannot be denied. ********************************************************************
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