The CPAP Masks Everyone Confuses Before Buying
Similar names, similar photos, genuinely different masks. Here are the three mix-ups we get asked about most — sorted out side by side, with the right buy link for each.
Updated August 2026 10 min read Mask Comparison · UK Guide
In This Guide
Jump to the pair you're comparing.
Browse ResMed's mask range for more than five minutes and you'll hit the same wall: several masks that look almost identical in product photos, share most of their name, and sit in the same price bracket. It's genuinely easy to add the wrong one to your basket.
Below are the three comparisons we're asked about most often, explained in plain terms — with a direct buy link under each mask as we cover it, not buried at the bottom of the page.
Pair 1 · Same Frame, Different Cushion
AirFit F20 vs AirTouch F20
AirFit F20
VS
AirTouch F20
Why people confuse them: they're literally the same mask — same frame, same headgear, same box shape on the shelf. The only difference is one word in the name.
AirFit F20
InfinitySeal™ Silicone Cushion
✓ Durable silicone, easy daily wash
✓ Cushion lasts 1–3 months
✓ Best for everyday reliability
Shop AirFit F20
AirTouch F20
UltraSoft™ Memory Foam Cushion
✓ Extra-soft, gentler on sensitive skin
✓ Wipe clean only, replace ~monthly
✓ Best for maximum comfort
Shop AirTouch F20
Because the frame is shared, cushions are interchangeable — you can own one mask and swap between silicone and memory foam depending on the night. Read the full AirFit F20 vs AirTouch F20 comparison for the complete breakdown.
Pair 2 · Different Masks, Confusingly Close Numbers
AirFit N20 vs AirFit N30i
AirFit N20
VS
AirFit N30i
Why people confuse them: "N20" and "N30i" look like two versions of the same product line. They're actually two completely different mask designs.
AirFit N20
Traditional Nasal Mask
✓ Front-mounted tube connection
✓ InfinitySeal™ cushion covers the nose
✓ Dependable seal at higher pressures
Shop AirFit N20
AirFit N30i
Nasal Cradle Mask
✓ Top-of-head tube connection
✓ Cushion sits under the nose, not over it
✓ Best for side sleepers, open field of vision
Shop AirFit N30i
Choose N20 if…
You want a proven, everyday nasal mask and don't mind the hose sitting in front of your face.
Choose N30i if…
You sleep on your side or move a lot, and want the hose completely out of the way.
Pair 3 · Same Letter, Same Coverage, Different Tube
AirFit F20 vs AirFit F30i
AirFit F20
VS
AirFit F30i
Why people confuse them: both are full face masks starting with "F", both cover nose and mouth, and both show up next to each other in search results.
AirFit F20
Full Coverage, Front Tube
✓ Traditional front-mounted tube
✓ Full silicone cushion seal
✓ Reliable at higher pressures
Shop AirFit F20
AirFit F30i
Minimal Contact, Top-of-Head Tube
✓ Top-of-head tube connection
✓ Under-the-nose cushion, more open feel
✓ Built for side and active sleepers
Shop AirFit F30i
On a budget and want a simpler full face option instead of either of these? The BMC F5A covers nose and mouth at a lower price point, without the top-of-head tube design.
Quick Reference
Every mask from this guide, in one table.
| Mask |
Type |
Tube Position |
|
| AirFit F20 |
Full face, silicone |
Front |
Shop → |
| AirTouch F20 |
Full face, memory foam |
Front |
Shop → |
| AirFit N20 |
Nasal, silicone |
Front |
Shop → |
| AirFit N30i |
Nasal cradle |
Top of head |
Shop → |
| AirFit F30i |
Full face, minimal contact |
Top of head |
Shop → |
| BMC F5A |
Full face, budget |
Front |
Shop → |
Frequently Asked Questions
Quick answers before you buy.
What's the actual difference between AirFit F20 and AirTouch F20?+
They share the identical frame and headgear — the only difference is the cushion. AirFit F20 uses InfinitySeal silicone, while AirTouch F20 uses UltraSoft memory foam. Cushions are interchangeable between the two.
Is AirFit N30i the same as AirFit N20?+
No, they're different mask families. The AirFit N20 is a traditional nasal mask with front-mounted tubing that seals around the nose. The AirFit N30i is a nasal cradle mask with a top-of-head tube connection that sits under the nose rather than over it.
What's the difference between AirFit F20 and AirFit F30i?+
Both are full face masks, but the tube connects differently. AirFit F20 has a traditional front-mounted tube. AirFit F30i has a top-of-head tube connection with a more minimal-contact cushion, generally better suited to side sleepers.
Can I switch cushions between AirFit and AirTouch masks?+
Where the frame is shared — such as AirFit F20 and AirTouch F20, or AirFit N30i and AirFit P30i — cushions are generally interchangeable, letting you try a different material or style without buying an entirely new mask.
Related Reading
Go deeper on any of these masks.
This guide is for general educational and product guidance purposes only and is not a substitute for advice from a qualified healthcare professional or sleep clinician. Mask suitability depends on individual factors including breathing pattern, face shape, and prescribed pressure — speak to your sleep clinic or CPAP provider if you're unsure which mask is right for you.
