Choosing the right CPAP mask is just as important as choosing the right CPAP machine. For users who breathe through their mouth or require higher air pressure, the mask must provide a strong seal without causing discomfort. This is where the ResMed AirFit F20 often stands out — but is it truly better than other masks?

In this blog, we compare the AirFit F20 with other common CPAP mask types so you can decide which option is best for your therapy needs.

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Why Mouth Breathers Need the Right Mask

Many CPAP users naturally breathe through their mouth, especially when:

• They have nasal congestion
• Deviated septum
• Allergies or sinus issues
• They sleep on their back
• They have high CPAP pressure settings

If a mouth breather uses a nasal or nasal pillow mask, air escapes through the mouth, causing:
❌ Dry mouth
❌ Poor sleep
❌ Reduced CPAP effectiveness
❌ Mask leak alerts

This is why full-face masks are recommended — they cover both the nose and mouth.

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Why High Pressure CPAP Users Struggle With Most Masks

When CPAP pressure is high (usually above 12–15 cmH₂O):

• Many masks leak easily
• The cushion blows out of place
• Nose-only masks feel overwhelming
• Users feel air blasts that break sleep

A strong seal and stable frame become essential for comfort and therapy success.

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ResMed AirFit F20: What Makes It a Strong Choice?

The AirFit F20 full-face mask is one of the most popular masks for mouth breathers and high-pressure therapy. Here’s why:

1. Wide Cushion Seal (InfinitySeal Technology)

The silicone cushion adapts to face shape and stays sealed even when pressure increases.
✔ Fewer leaks
✔ Stable on high pressure
✔ Comfortable for long nights

2. Full-Face Coverage for Mouth Breathers

It covers nose + mouth, making it ideal for:

• Mouth breathers
• Congestion
• Sinus issues
• Nighttime allergies

3. Fits Most Face Types

The flexible frame doesn’t dig into the skin and works with many facial structures—even round, wide, or narrow faces.

4. Magnetic Clips for Easy Wearing

Quick on–off: great for users who wake up during the night.

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How It Compares: AirFit F20 vs Other CPAP Masks

1. AirFit F20 vs Nasal Masks (e.g., N20, N30i)

Conclusion:
If you're a mouth breather or use high pressure, nasal masks are not recommended. The F20 is the better choice.

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2. AirFit F20 vs Nasal Pillows (e.g., P10, P30i)

Nasal pillows are small and light but not ideal for strong airflow.

Conclusion:
For high pressure users, nasal pillows often feel too intense. The AirFit F20 wins easily.

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3. AirFit F20 vs Other Full-Face Masks (e.g., F&P Vitera, Philips DreamWear FF)

Seal Strength:

AirFit F20’s InfinitySeal cushion holds better during pressure changes than many other full-face models.

Comfort:

Many users find the F20 softer and less bulky.

Fit Flexibility:

The F20 fits a majority of face shapes without major adjustments.

Conclusion:
While other full-face masks can work well, the F20 generally performs more reliably at higher pressures.

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So Which Mask Is Best for High Pressure & Mouth Breathers?

If you:
✔ Breathe through your mouth
✔ Use CPAP pressure above 12 cmH₂O
✔ Experience mask leaks
✔ Wake up due to air blowing out

The ResMed AirFit F20 is one of the best overall choices.

It provides:

• Strong seal
• Stable performance
• Comfort
• Easy use
• Improved sleep quality

No mask fits everyone perfectly, but the F20 consistently ranks as a top solution for both challenges — high pressure and mouth breathing.

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Final Thoughts

Choosing your CPAP mask can make or break your therapy. While nasal masks and nasal pillows work well for some users, those with high pressure or mouth breathing issues generally experience fewer problems with the ResMed AirFit F20.