About: Mask Leak Rate   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Masks are made with vent holes to allow exhaled air to reach the atmosphere. If this did not happen, carbon dioxide would accumulate and suffocate the user. Each mask has its own intentional leak rate which increases with pressure. The amount of the intentional leak rate versus pressure can be found in the instruction manual that comes with the mask. Some rates have beentabulated on the World Wide Web. While some machines/software/mask combinations take into account the intentional leak rate when reporting leak rates, most machines report the total leak rate. The total leak rate is the sum of the intentional leak rate (the air leaking out the vent holes in the mask) and the residual leak rate, the air leaking accidently out of the system.

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rdfs:label
  • Mask Leak Rate
rdfs:comment
  • Masks are made with vent holes to allow exhaled air to reach the atmosphere. If this did not happen, carbon dioxide would accumulate and suffocate the user. Each mask has its own intentional leak rate which increases with pressure. The amount of the intentional leak rate versus pressure can be found in the instruction manual that comes with the mask. Some rates have beentabulated on the World Wide Web. While some machines/software/mask combinations take into account the intentional leak rate when reporting leak rates, most machines report the total leak rate. The total leak rate is the sum of the intentional leak rate (the air leaking out the vent holes in the mask) and the residual leak rate, the air leaking accidently out of the system.
dbkwik:sleepapnea/...iPageUsesTemplate
abstract
  • Masks are made with vent holes to allow exhaled air to reach the atmosphere. If this did not happen, carbon dioxide would accumulate and suffocate the user. Each mask has its own intentional leak rate which increases with pressure. The amount of the intentional leak rate versus pressure can be found in the instruction manual that comes with the mask. Some rates have beentabulated on the World Wide Web. While some machines/software/mask combinations take into account the intentional leak rate when reporting leak rates, most machines report the total leak rate. The total leak rate is the sum of the intentional leak rate (the air leaking out the vent holes in the mask) and the residual leak rate, the air leaking accidently out of the system. Snoredog states that a residual leak rate of 20 liters per minute is allowable. This is in agreement with the results of a small poll Lasinoh Babette notes that one of the ways of reducing the residual leak rate is to wipe a thin layer of Lasinoh , a Lanolin like compound, on the seal of the mask where it touches the face. It is sticky and helps the mask adhere to the face. Lasinoh is used to help heal the nipples of nursing mothers and maybe found in the baby section of your local store.
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