Sources: TSA CPAP FAQ and CPAP/BiPAP/APAP item page; ResMed AirSense 11 user guide. Checked 13 October 2026. Airline policies vary; check yours.
TSA screening: what each page says
| Question | TSA FAQ | TSA item page (updated 15 Jul 2026) |
|---|---|---|
| Allowed in carry-on? | Yes | Yes |
| Remove from its case? | Yes, for X-ray | May stay in case; may need to come out of the carry-on |
| With TSA PreCheck | Not stated | Can stay in its case and in the carry-on |
| Lithium-battery devices | Not stated | Should be carried on |
The two pages disagree on the case. Pack so the device comes out easily, and follow the officer’s instructions.
On the plane (AirSense 11 example)
| Item | What ResMed says |
|---|---|
| Carry-on allowance | Medical devices don’t count toward the carry-on limit |
| In-flight use | Meets FAA requirements; air travel compliance letters at resmed.com |
| Humidifier | Must be empty, but the tub or side cover must be inserted or the device won’t run |
| Airplane mode | Switch on when airline staff require it |
| Aircraft power | Power supply rated 115 V, 400 Hz, 1.5 A for aircraft use |
Other models have their own documents; check yours before you fly.
Packing checklist
- Device, mask, tubing and power supply in the travel bag (ResMed advises using it to prevent damage)
- Humidifier tub emptied and packed separately
- The right power cord for your destination
- The airline’s compliance letter, printed
- Batteries in your carry-on (CPAP battery options)
Verdict
Carry your CPAP on, empty the humidifier, and be ready to take it out of the case at screening. For lighter options see best travel CPAP machines; if you use oxygen, read FAA portable oxygen concentrator rules.
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