Slide show: Which CPAP masks are best for you?
Photos of two full face CPAP masks that cover nose and mouth
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The mask covering the nose and mouth supplies air pressure. Side straps keep the mask in place.

Might be good if:

  • You have nasal obstruction or congestion that makes breathing through your nose difficult
  • You breathe through your mouth at night despite a month of trying a nasal mask or nasal pillow interface combined with a heated humidity feature or chin strap or both to keep your mouth closed
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