Buying essential dive gear

Today I purchased a new bit of kit for my rebreather from Ambient Pressure – part number AP02/12 which is a replacement rubber mouthpiece with head strap attached. This new mouthpiece has the advantage of staying in a diver's mouth should they become incapacitated whilst diving. An example of when a diver may lose their mouthpiece during a rebreather dive, is if they experience a convulsion (a seizure) brought on by exposure to a high partial pressure of oxygen, known as hyperoxia. The theory is, if a diver should be unlucky enough to have a convulsion underwater with a head strap in place there is a good chance that the mouthpiece is still in their mouth when the seizure finally subsides, and they can recover enough to take a breath from the rebreather. Without a head strap it's more than likely that the diver will lose the mouthpiece from their mouth and that greatly increases the odds of drowning. :o(

The cost of this simple device is £48.20 (plus P&P and NZ import duties) which might appear a bit pricy, but I think it will be worth it.