Possible Breeze modification and a request for help

ozij wrote:
Have just done some measuring:

Diameter of Breeze vent hole: 3mm

Inner diameter of PB pressure line -- looks to me like its also 3 mm.

Actually, that pic looks like.....aquarium hose! Small bore aquarium hose! the flexibility of this looks good... could be easily routed up to the top of the piece that holds the existing Breeze hose.

The questions:
1. Will this litte plug fit in the PB vent hole? ((lower right bottom end of the pressure line - looks promising)
2. How does the presence of the line to line connector effect the CO2 clearing? If it apparently doesn't affect pressure sensing, will it make a difference to CO2 venting? Any hydraulics experts out there to tell us?
3. Would it change the sensed pressure within the mask for PB 420E users?

If the little plug is a problem you may want to try and broaden the hole till you can push the pressure line through the broadened hole.

I think that would be what I would do...the rubber plug/hole on the Breeze is somewhat flexible and should be able to take a tube a tad larger than 3 mm.

And you can buy a replacement vent in case you harm the present one.
https://www.cpap.com/viewImage.php?PNum ... llVent.jpg

O.

heehee...already have 'em. I didn't start dinking around with this until I had them.

Thanks for the suggestions!

tomjax wrote:I would be very careful when messing with the hole.
It is a certain size for a reason and this size affects the pressure.
a tad may be compensated for as a leak, but be careful.

Thanks for your concern. My intent is not to make the hole smaller or larger. I want to have the same diameter opening, just in the form of a somewhat flexible tube, so I will be looking to match the interior diameter to the existing hole.

I have heard this before - that itg bothers a mate.
I cannot underetand it at all. It does not bother my wife at all.
Guess people vary in their tolerance.

I just cannot iimagine this ever being a problem.

Yes, people do vary. She is a very light sleeper. I do my best to accomodate that.

Actually, that pic looks like.....aquarium hose! Small bore aquarium hose! the flexibility of this looks good... could be easily routed up to the top of the piece that holds the existing Breeze hose.

It's very flexible - the tube wall itself is about 1 mm. thick.

O

When you get it done, Bookbear, let us know. With pics, if possible.

I sense (no pun intended! lol ) another Lab Rat award in the making....

why ya using that? thing will leave a bald spot ;D

I'm sure that the breeze (no pun intended) can not possibley affect your sleeping partner as much as your snoring did. Don't mess with the vent holes. If you need to modify anything turn so that you are not facing your sleeping partner. After all ur both asleep whats to look at!

Snoredog wrote:why ya using that? thing will leave a bald spot ;D

Bald breathing men are so much sexier than hairy dead men...
B.

Well, I have modified the Breeze to remove the "winds" on the top part of the head piece. I'm pretty furry, so there's little chance of me going bald. :winkl: I have a flat top/buzz cut, so the dent caused by the head piece isn't really noticeable. I use the Breeze because it works, and because the straps do not make ruts in my face or beard, like all other headgear seems to.

Babette, I agree...alive is sexier than dead![/i]

Bookbear
I read that the Breeze mask has two interchangable exhaust ports. I assume you are using the right one for nasal pillows?

Your mask vents 25 lpm and the ultra mirage ll that I use vents 38 lpm at 12 cm. Enlarging the 3 cm vent hole on the breeze a little would increase the flow and possibly cut down on the noise. The pressure should stay the same because it is controlled by the c-pap machine. If the machine measures low pressure it increases the air flow until the loss thru the exhaust equals your set pressure. I am not suggesting that you change the hole to solve your problem. I am just saying how I think it works.

If it were me I would try the deflector idea that was suggested. I like to experiment. My ultra mirage ll has much more vent area than your breeze. It has a deflector that clips on the mask and directs the flow 90 degrees along the airline. It also increases the flow area and velocity. The deflector is curved so that the air turns gradually. The mask is very quiet at 18 - 19 cm pressure.

One way that I would try to build a deflector would be to buy a PVC water pipe elbow. Somewhere between 1/4 in to 1/2 in might work. Lay the elbow down so that it points left and down. You could saw and sand the elbow along either a horizontal line thru the center of the left facing circle or on a line lined up with the bottom of the elbow. The elbow could be taped to the mask with duct tape to try it out. I would line up the closed end with the hole. If you cut in line with the bottom of the pipe there would be an open hole on one end that would go over the vent. The exhaust air would follow the curved portion of the elbow and turn 90 degrees and fill a larger area which would reduce the velocity. If the exhaust air follows a curve it should be quiet. If the elbow was not long enough a straight section of pipe could be PVC glued to the elbow before cutting. You could try this while you were awake to make sure it works. I am not guaranteeing that this work but it would be fun to try making and testing it. Good luck.
GeneS