Carry on baggage
No
Checked baggage
Check with carrier
This includes small gas cylinders containing carbon dioxide (CO₂), oxygen (O₂), or butane (C₄H₁₀), often used in curling irons, Thermacell units, or portable stoves. These are not allowed in carry-on baggage. You may be able to pack them in checked baggage, but only with your air carrier’s approval. Always check with your airline before you travel.