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jo nep · 20-12-2013, 15:29

I have been fortunate that I was assisting my PD when she designed and built her vac-bed. The only problem I experienced was forcing me to relax, breathe through the mouth piece and make sure you have a good fitting air tube. It was very easy to relax the grip on the mouthpiece which immediately brakes the seal and funny thing happen as the vacuum is then sucking out the air from your mouth.

We experimented with Mistress trying the sac and she had real trouble with the breathing but did find it easier with a anaesthetic type of mask. Firmly over mouth and nose and it prevents the latex tightening over the mouth.

I found that a good sized mouthpiece worked better but even with that firmly in place, any external touching of the breathing tube can dislodge the seal and you have then to really concentrate on breathing to re-establish the correct mouthpiece position.

It is definitely worth persisting with as, once the breathing is regulated it a gloriously restrictive feeling.

20-12-2013, 15:29	#6
jo nep Member Join Date: Mar 2012 Posts: 1,312 Reputation: 145	I have been fortunate that I was assisting my PD when she designed and built her vac-bed. The only problem I experienced was forcing me to relax, breathe through the mouth piece and make sure you have a good fitting air tube. It was very easy to relax the grip on the mouthpiece which immediately brakes the seal and funny thing happen as the vacuum is then sucking out the air from your mouth. We experimented with Mistress trying the sac and she had real trouble with the breathing but did find it easier with a anaesthetic type of mask. Firmly over mouth and nose and it prevents the latex tightening over the mouth. I found that a good sized mouthpiece worked better but even with that firmly in place, any external touching of the breathing tube can dislodge the seal and you have then to really concentrate on breathing to re-establish the correct mouthpiece position. It is definitely worth persisting with as, once the breathing is regulated it a gloriously restrictive feeling. Last edited by jo nep; 28-01-2014 at 21:00.