I have used this mask for two nights with mixed results. The first night I took it off after about 3 hrs. The second night was better but it made a whole lot of noise and kept wifie awake most of the night. Does anyone have any suggestions on quieting this mask?
rjgreen3
Comfort Full 2 Report
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Guest
I agree with you, the Comfort2 is a very noisy animal. I've thought about drilling out them tiny square holes with 4 to 6ea x 1/16" round holes to see if it would not quiet it down some, I cannot use it otherwise way too noisy for me also. Since the cushion is not replaceable what you I got to loose?
I'm finding that to be a trait of the new Respironics masks as the last two I have received have both been that way.
They get so close in making a very nice mask then allow it to be so noisy, too bad they are not listening.
I'm finding that to be a trait of the new Respironics masks as the last two I have received have both been that way.
They get so close in making a very nice mask then allow it to be so noisy, too bad they are not listening.
I just modified my new Comfort2 Full Face mask. It is a throw-away mask so I don't have anything to loose.
First I took the quietest mask I own, then looked at the elbow of the Activa and Vista which I found each to have 4ea x 3/32" holes for exhaust in the removable leader hose elbow. Next the UltraMirage Full Face has 6ea x 1/16" holes in the horseshoe shaped silicone gasket up near the nose bridge area. So I figured I'd model the modified Comfort2 after the UMFF since it is the quietest mask I own. But I didn't want to drill 6 holes, decided to try 4 first.
1. Using a dime and scratchall to draw a half circle up in the nose bridge area right below the forehead clip on the Comfort2, I scribed a half moon line in the plastic housing dead center.
2. I then marked 4ea places to drill 1/16" holes similar to the half moon found on the UMFF's exhaust. Using my cordless drill with a 1/16" bit, I drilled the holes. So now I have 4ea exhaust holes in nearly the identical location as the UMFF's exhaust holes found in the horseshoe gasket on the Comfort2's plastic housing.
3. Using a quarter and clear shipping tape, I cut out some shipping tape using the quarter has a template guide going 3/4 way covering the quarter. I cut around the quarter with scissors, removed the half round cut piece of tape from the quarter and using the scribe guided the piece of tape inside the elbow covering ALL the tiny square exhaust holes in the elbow, using my finger I pushed down on the tape to make it seal, this effectively sealed ALL the stock exhaust holes shut in the 360 elbow.
4. Through trial and error I learned the 4ea x 1/16" holes was not enough exhaust relief for me, mask clouded up with humidity and I started to hyperventilate, so using a larger 5/64" bit I redrilled all the holes, gave it another try, still started to hyperventilate indicating I was rebreathing too much CO2 for me. Using an even larger 3/32" bit I redrilled all 4 holes again. Another try and this time no more hyperventilation, felt very similar to the UMFF, so I'm going to try it there tonight.
As for noise difference? that is hard to say with the tests I've done so far but I'd say it is quieter than stock design but still a bit more noisy than the UMFF which I find nearly silent (except for the bull frog sound it has a tendency to make as you breathe in an out at times).
But so far I'd say it is much quieter than stock Comfort2 was. Will let you know how it works out tomorrow and if it is worth modifying. I can always reverse the modifications using shipping tape covering the holes I made and removing the piece of tape from inside the elbow.
First I took the quietest mask I own, then looked at the elbow of the Activa and Vista which I found each to have 4ea x 3/32" holes for exhaust in the removable leader hose elbow. Next the UltraMirage Full Face has 6ea x 1/16" holes in the horseshoe shaped silicone gasket up near the nose bridge area. So I figured I'd model the modified Comfort2 after the UMFF since it is the quietest mask I own. But I didn't want to drill 6 holes, decided to try 4 first.
1. Using a dime and scratchall to draw a half circle up in the nose bridge area right below the forehead clip on the Comfort2, I scribed a half moon line in the plastic housing dead center.
2. I then marked 4ea places to drill 1/16" holes similar to the half moon found on the UMFF's exhaust. Using my cordless drill with a 1/16" bit, I drilled the holes. So now I have 4ea exhaust holes in nearly the identical location as the UMFF's exhaust holes found in the horseshoe gasket on the Comfort2's plastic housing.
3. Using a quarter and clear shipping tape, I cut out some shipping tape using the quarter has a template guide going 3/4 way covering the quarter. I cut around the quarter with scissors, removed the half round cut piece of tape from the quarter and using the scribe guided the piece of tape inside the elbow covering ALL the tiny square exhaust holes in the elbow, using my finger I pushed down on the tape to make it seal, this effectively sealed ALL the stock exhaust holes shut in the 360 elbow.
4. Through trial and error I learned the 4ea x 1/16" holes was not enough exhaust relief for me, mask clouded up with humidity and I started to hyperventilate, so using a larger 5/64" bit I redrilled all the holes, gave it another try, still started to hyperventilate indicating I was rebreathing too much CO2 for me. Using an even larger 3/32" bit I redrilled all 4 holes again. Another try and this time no more hyperventilation, felt very similar to the UMFF, so I'm going to try it there tonight.
As for noise difference? that is hard to say with the tests I've done so far but I'd say it is quieter than stock design but still a bit more noisy than the UMFF which I find nearly silent (except for the bull frog sound it has a tendency to make as you breathe in an out at times).
But so far I'd say it is much quieter than stock Comfort2 was. Will let you know how it works out tomorrow and if it is worth modifying. I can always reverse the modifications using shipping tape covering the holes I made and removing the piece of tape from inside the elbow.
someday science will catch up to what I'm saying...
I managed to use it until about 3AM, it was still way too noisy for me, I went back to the UMFF which is more comfortable and more quiet. Resmed has done something unique with the exhaust port on it, it is silent compared to these other masks.
The modified Comfort2 had a constant hiss to it like leaking air from the holes I drilled. I haven't tried putting in some foam which may quieten down the exhaust.
The UMFF has more of a contour to it that fits my face better and it rides up higher on my nose bridge, this puts less pressure around my nose which causes me to become congested.
So at this point I'd say it is probably not worth modifying the Comfort2 to make it less noisy.
The modified Comfort2 had a constant hiss to it like leaking air from the holes I drilled. I haven't tried putting in some foam which may quieten down the exhaust.
The UMFF has more of a contour to it that fits my face better and it rides up higher on my nose bridge, this puts less pressure around my nose which causes me to become congested.
So at this point I'd say it is probably not worth modifying the Comfort2 to make it less noisy.
someday science will catch up to what I'm saying...
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