CPAP Mask Fit Guide

Find the perfect mask for comfortable, effective CPAP therapy

Fitting Guide 7 min read EN | ES Available

Types of CPAP Masks

Nasal Pillows

Small cushions that seal around the nostrils

Pros:

  • Minimal contact
  • Great for claustrophobia
  • Works with glasses

Cons:

  • Not for mouth breathers
  • Higher pressure may be uncomfortable

Best for:

Side sleepers, active sleepers, those who feel claustrophobic

Nasal Masks

Covers the nose from the bridge to upper lip

Pros:

  • Good seal
  • Comfortable for most
  • Stable during sleep

Cons:

  • Not for mouth breathers
  • May cause bridge marks

Best for:

Nose breathers, those who move during sleep

Full Face Masks

Covers both nose and mouth

Pros:

  • Works for mouth breathers
  • Good for higher pressures
  • Reliable seal

Cons:

  • Bulkier design
  • May feel claustrophobic
  • More cleaning required

Best for:

Mouth breathers, those with nasal congestion, higher pressure needs

How to Measure for the Right Size

Measuring Your Face

  • 1 Use a flexible measuring tape or printable sizing guide
  • 2 Measure from the bridge of your nose to just below your bottom lip
  • 3 Measure the width across your nose at its widest point
  • 4 Compare measurements to the manufacturer’s sizing chart

Fitting Tips

  • Start with headgear loose, then gradually tighten
  • The mask should seal without being overly tight
  • You should be able to slide a finger under the straps
  • Check for leaks around the cushion edges
  • Allow 1–2 weeks for adjustment to new mask

Common Fit Issues & Solutions

Air Leaks Adjust headgear tension, check cushion condition, or try a different size
Red Marks or Pressure Sores Loosen straps, use mask liners, or consider a different mask style
Dry Mouth Use a chin strap, switch to full face mask, or add heated humidifier
Claustrophobia Try nasal pillows, practice wearing mask while awake, or use gradual acclimation
Mask Slipping During Sleep Adjust headgear, try different pillow, or consider a more stable mask design

Find Your Perfect CPAP Mask

Browse our selection of CPAP masks from top brands like ResMed. All masks come with our 30-day exchange guarantee.

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Need fitting help? Call us at (956) 267-8405