Do I have to declare medical oxygen cylinders and concentrators at Portugal customs?

No — within the allowance it passes without a declaration.

What happens if I do not declare medical oxygen cylinders and concentrators in Portugal?

Under Autoridade Tributária e Aduaneira, Guia para Viajantes, if you declare the excess yourself: a flat-rate charge is applied to the excess. Under AT, Guia para Viajantes: the normal duty becomes payable on the excess. Under RGIT, artigo 108.º n.º 2, if the goods are found without being declared: the goods are confiscated.

Can I post or ship medical oxygen cylinders and concentrators to Portugal instead of carrying it?

Not under this allowance. It covers goods a traveller carries; a parcel is an import and is assessed under the postal rules instead. Baggage sent before or after you travels under the same allowance.

Does the Portugal limit for medical oxygen cylinders and concentrators apply per person or per family?

Per person. Each traveller carries their own allowance and it cannot be pooled with anyone else's.

Where does this rule come from?

Autoridade Tributária e Aduaneira (AT) states it in Guia para viajantes. CarryRules last confirmed that sentence at the source on 2026-09-19.

How does Portugal compare with other countries on medical oxygen cylinders and concentrators?

Of the 20 countries covered here, 1 prohibit medical oxygen cylinders and concentrators, 10 limit it and 9 let it through. Portugal is among the ones that set a limit.

How much Medical oxygen cylinders and concentrators can I bring into Portugal?

Allowed

You can bring Medical oxygen cylinders and concentrators into Portugal without a special limit.

Cabin baggage —

Checked baggage —

Declaration Not required

Limit 430 EUR

What you need to know

No stated quantity
Value cap: 430 EUR
Channels: Carried with the traveler

Important

This allowance applies per person, not per family or group.

Official sources disagree on this rule and the conflict is not yet resolved.

Official sources

Last verified 2026-09-19

Guia para viajantes Autoridade Tributária e Aduaneira

Questions about Medical oxygen cylinders and concentrators in Portugal

How much medical oxygen cylinders and concentrators can I bring into Portugal?: Portugal publishes no quantity limit for medical oxygen cylinders and concentrators carried by a traveller. The allowance is per traveller and cannot be pooled between people.
Do I have to declare medical oxygen cylinders and concentrators at Portugal customs?: No — within the allowance it passes without a declaration.
What happens if I do not declare medical oxygen cylinders and concentrators in Portugal?: Under Autoridade Tributária e Aduaneira, Guia para Viajantes, if you declare the excess yourself: a flat-rate charge is applied to the excess. Under AT, Guia para Viajantes: the normal duty becomes payable on the excess. Under RGIT, artigo 108.º n.º 2, if the goods are found without being declared: the goods are confiscated.
Can I post or ship medical oxygen cylinders and concentrators to Portugal instead of carrying it?: Not under this allowance. It covers goods a traveller carries; a parcel is an import and is assessed under the postal rules instead. Baggage sent before or after you travels under the same allowance.
Can I take medical oxygen cylinders and concentrators out of Portugal?: Portugal publishes no separate rule for taking medical oxygen cylinders and concentrators out; the destination's rules are what will apply.
Does the Portugal limit for medical oxygen cylinders and concentrators apply per person or per family?: Per person. Each traveller carries their own allowance and it cannot be pooled with anyone else's.
Where does this rule come from?: Autoridade Tributária e Aduaneira (AT) states it in Guia para viajantes. CarryRules last confirmed that sentence at the source on 2026-09-19.
How does Portugal compare with other countries on medical oxygen cylinders and concentrators?: Of the 20 countries covered here, 1 prohibit medical oxygen cylinders and concentrators, 10 limit it and 9 let it through. Portugal is among the ones that set a limit.

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