Howard,
From your website,
"This allows the air space in the ear cups to equalize according to ambient pressure. The mask, ear cups and indeed the entire respiratory system become a closed circuit equalized air pressure system.
"The ear cups serve as a primary filter of ambient water pressure from the sea and the tubes mimic the Eustachian tubes allowing the diver to easily equalize the pressure in the ear cup before it ever reaches the ear drum.
"All the diver has to do is gently blow air through his nose to keep the ambient pressure (taken from the regulator) into the mask and ear cups. This creates a kind of 'Buffering' effect which basically allows the ears the equalize in 2 stages. The first from the sea pressure into the ear cup and the second from the ear cup onto the ear drum.
"The action of the silicone tube mimics the Eustachian tube but transports air in a much easier less obstructed fashion."
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Much of this may, possibly, be true in a strictly literal sense.
However the terms "equalisation", "eustachian tube", " ambient pressure" and "closed circuit" are all associated in the minds of novice divers (and many not so novice) with middle ear equalisation. These terms, therefore, strongly suggest that the Proear will assist with middle ear equalisation which it clearly does not. :upset:
There may be a neccessity for certain divers to keep their external ear canals comfortably dry and this device appears to achieve that objective.
Indeed it may permit divers suffering with recurrent otitis externa or a chronic tympanic membrane rupure to dive in relative safety because little or no water will enter the middle ear,
but I can think of few other uses for it.
(I am not recommending this use for it by any means! On the contrary)
Howard you ask "Have you personally seen or tried the ProEar mask?"
The answers are "yes" and "no", which brings me to ask, as an experienced diver (and potential customer!) with no ear or equalisation problems what benefits it could bring me?
