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Flying with a portable oxygen concentrator

Most of the work happens before you get to the airport. Here is what to sort out, and when.

1. Talk to your doctor first

The air in an aircraft cabin is thinner than on the ground. Cabins are pressurised to the equivalent of up to about 8,000 feet. The British Thoracic Society says people who use oxygen at home, or who have severe or unstable lung disease, should be assessed before they fly. Your doctor decides whether you need oxygen in the air and at what setting.

2. Tell the airline early

Airlines need to approve a concentrator before you travel. Air New Zealand asks for medical clearance on its MEDA form, sent at least 48 hours before travel if you bring your own machine. Other airlines have their own forms and deadlines, so check as soon as you book.

3. Check your machine is accepted

Air New Zealand accepts the models on its approved list, or a machine approved by the US Federal Aviation Administration that carries the manufacturer's label, up to 7 kg and 115 cm in total dimensions. Other airlines keep their own lists.

4. Plan your batteries

  • Carry enough spare batteries for the whole journey, including delays. Air New Zealand says there is no aircraft power on its domestic flights.
  • The Civil Aviation Authority says lithium batteries in medical devices must not be over 160 watt-hours, and batteries over 100 watt-hours need the airline's approval.

5. Know what you cannot bring

  • Air New Zealand does not let passengers bring their own oxygen bottles on board.
  • Liquid oxygen is not permitted on passenger aircraft.

6. Using a CPAP on board?

If you want to use a CPAP machine during the flight, Air New Zealand also asks for clearance and 48 hours' notice.

How Breathe fits in

If you hire from us, tell us your airline and how long the flight is. We help with the airline form and talk through batteries with you. See oxygen hire.

This page is general information, not medical advice. Your doctor or nurse knows your situation; please talk to them before changing any treatment.

Sources

  • Coker RK and others. British Thoracic Society clinical statement on air travel for passengers with respiratory disease. Thorax, 2022. brit-thoracic.org.uk
  • Air New Zealand. Medical equipment. airnewzealand.com
  • Civil Aviation Authority of New Zealand. Travelling with medical items. aviation.govt.nz

Checked November 2026. Airline and official pages change, so follow the links for the current wording.