Very splendid, except some dozen people managed to misuse it. Diving deeper and without small emergency bottle.
So it was banned for all eternity everywhere. Even Chinese have not rekindled this product.
Because I am fool, I tried to make my own. But gave up because breakages were indicated only by lung full of water, which tend to be fatal.
Could have been Austrian invention anyways, perhaps?
Very splendid, except some dozen people managed to misuse it. Diving deeper and without small emergency bottle.
So it was banned for all eternity everywhere. Even Chinese have not rekindled this product.