Can I Bring Liquid oxygen on a Plane to Canada?
Liquid oxygen
Not Allowed
Prohibited in both
According to CATSA guidelines, liquid oxygen:Â May be permitted in checked baggage if approved by air carrier.
The final decision rests with the CATSA officer on whether an item is allowed through the checkpoint. Official CATSA Rules →
Quick Rule
Under 3.4oz (100ml)
Allowed in carry-on
Over 3.4oz (100ml)
Must go in checked bag
Checked Baggage
Allowed in any size
Source: Official CATSA Regulations ↗Updated: May 20, 2026
Also known as
liquid oxygenoxygenO2
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