I looked into hookah style diving assistant units way back in my cruiser days for cleaning the bottom of the boat as it was far harder than the Investigator. My sister-in-law was a qualified professional dive master at the time and warned me not to go near any of these devices at all. Any form of this stuff requires proper scuba training otherwise it can kill you, very easily. Many lung injuries she said occur from depths as shallow as six feet if you don’t exhale.
The other devices I’ve been told to be cautious about are the full face style dive masks. We are both keen snorkelers and on trips to Vanuatu and New Caledonia years ago these started appearing more and more frequently, I thought they might be worth a try and looked into it but as per the article below they also have issues. Not blowing your lungs to pieces like the portable scuba, but excess CO2 not ejected on exhale. There are improvements to these but be aware of the proper fitting warnings. I’ll stick to my standard snorkel setup which while I’ve got the puff left to use it works good enough.
Marvin out…
https://snorkelaroundtheworld.com/2018/ ... dangerous/
