Here you can see how the TP2000 is worn while diving. That
band around the center of the scrubber is used to attach
the cannister to a weight belt, which also holds the
oxygen and diluent bottles, although I'm just using oxygen
for the "couch dive" shown here. The neck strap keeps
the unit in place when the mouthpiece is not in the mouth.
BTW, that's Penfold's Grange I'm drinking there, in
deference to the Aussies. And yes, that's
Mr. Sulu in the background - those digitally remastered
Star Trek episodes are perfect for couch diving.