Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

Holes and vents in masks?
#1
Question 
Holes and vents in masks?
Okay, I got a bit of a curiosity question here. Almost all masks that I have seen, have some form of holes or vents cut into them. Now these vents don't seem to be unidirectional based on exhalation vs. inhalation, so they seem to be always leaking air out no matter what. Is there a standard volume of air leakage that these vents are designed to expel? Doesn't the volumetric rate change based on your machine pressure settings? Also isn't this inefficient if your machine is set to a certain pressure, but most of that pressure is being leaked out constantly?
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: Holes and vents in masks?
I don't know standard volume or mechanics of it all but without some sort of vent on the masks we would be reinhaling our own CO2 so maybe not efficient design but necessary.
Post Reply Post Reply
#3
RE: Holes and vents in masks?
Every mask has a pressure/leak rate chart published in the mask's documentation that accompanies the mask.
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#4
RE: Holes and vents in masks?
For safety sake: Never tape/cover the holes or alter them in any way.

The Flow rate does increase with increased pressure.

The air you are expelling is being flushed out of the holes.
Post Reply Post Reply






Donate to Apnea Board  
#5
RE: Holes and vents in masks?
I guess I type to slow.
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Why are the AirMini masks so much noisier than home machine? cpaplvr 6 278 09-20-2022, 03:20 PM
Last Post: darf
  Does Resmed F20 use the same frame for small medium and large masks snorin2 6 179 09-16-2022, 03:06 PM
Last Post: SideSleeper
  New RERA data after switching masks?? Austin7756 2 209 09-14-2022, 03:35 PM
Last Post: Austin7756
  Switching masks major improvement? bballkj7 2 208 08-30-2022, 11:03 AM
Last Post: bballkj7
  Philips Dreamwear masks discontinued? bbbl67 4 463 08-22-2022, 07:26 AM
Last Post: djont57
  Anyone know who sells masks with no prescription? theMezz 9 519 07-19-2022, 09:59 AM
Last Post: Nightynite
  Need Help with New CPAP Problems: masks, leaks, and dry throat Lunasea 11 675 06-30-2022, 08:35 PM
Last Post: Lunasea


New Posts   Today's Posts






About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.