Does this make Rebreathers Obsolete?

teksimple

This thing looks pretty cool.

Very small. 9400 psi? The video shows 4900 psi, and indicates that the cartridges are replaceable. But maybe there is a new and improved version.

Imagine this might work just fine for bailing out on dives above 50m or so. But the price might make you think twice (or perhaps a dozen times) about coming off your loop.

Press release here

dteubner

Let's do some maths

THe cylinders are (according to their scale) about 3.75cm wide and 8cm long not counting the tops and bottoms.

A cylinder of that size has a volume of about 90 cubic centimetres - if the walls have no thickness. Let's be generous and say 90cc for the whole thing counting the tops and bottoms and allowing a little bit for wall thickness.

If you fill two of them to 9400 psi (say 640 Bar) then you have a total gas volume of (drum roll) 115 litres.

If you use it then you get to pay $1700 for a refill.

Altenatively, if you really want about 1/5th of the bailout available from a BOV on a 3l cylinder, then you could buy 2 Spare Airs. (One obviously wouldn't be enough because it only has a capacity of 85 litres)

Mind you if you only fill it to 4900 psi then it's only got about 60l of air in it - a lot lesss than the Spare Air.

Just to labout the point. If you're a bit frightened at 50m and taking 2 litre breaths, each breath is going to cost you about $176 and you won't quite get 10 of them.

Dave T

jaap

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DeepBlueInnovation

Even if the information is partially correct, it has to be a positive thing. Bail out is getting smaller, and while as someone pointed out in another post while it currently equates to about $176 per breath, like all technologies it will eventually come down in price - military demand, commercial demand and ultimately filtering down to an affordable price range for humble divers.