Types of Masks
Nasal Masks
This type of interface requires breathing through the nose and
keeping the mouth closed. a chin strap can be worn with the nasal
mask to help accomplish this, if needed.
A correctly fitting nasal mask extends from the bridge of the nose
to the bottom of the upper lip without touching the sides of the
nose or going above the top of the mouth.
Oral Masks
These are a good option for those who breathe through their mouths.
Oral masks can be used with or without headgear, and have a flap
that goes in front of the teeth and another flap that goes outside
the mouth. The inner flap is enough to hold it in place during the
day, but at night, an oral mask requires a strap.
A correctly fitting mask covers the entire mouth. To ensure a proper
fit, it's important to find an inner flap that fits your mouth. The
mask has an adjustment knob for changing the separation between the
inner and outer flaps.
Full Face Masks
For those who breathe through both the nose and mouth, full face
masks are the way to go. Their breathing flexibility makes them a
favorite for nighttime use.
Some full masks reach from the bridge of the nose to the bottom of
the mouth and others reach from the nose bridge to below the chin.
Still, others cover the entire face, including the eyes. Full masks
distribute the pressure over a wider area, which can mean less skin
irritation.
While some feel more claustrophobic with a full mask, others prefer
them to nasal masks with chin straps because they don't want their
mouths held shut. Full masks also are better for people with
mustaches, which can interfere with getting a tight seal.
Mouthpieces
If breathing through the mouth is desired, an option would be a
mouthpiece, which is similar to
