What cracks me up about the people at Quartzsite who sell and promote it, tell "clueless" customers that it "injects more OXYGEN" into your shower for a "More invigorating" shower. YEAH SURE IT DOES! Our air, on our earth anyway, contains very close to 21% Oxygen, NO MORE! So, INJECTING any more than what's in our air is impossible.
While we do have one, and the DW loves it, it's really no more than an aerated shower head. We've been taking "Navy" showers since we met and got married, over 29 years ago. So, conserving while camping has been in practice for generations, even our kids do it and, we even do it at home. But, we don't have an one of those shower heads at home.
Scott