坐飞机可以带 Small Compressed Gas Cartridges 吗？
Yes, with limits — you can bring small compressed gas cartridges in carry-on bags provided you follow security limits. Max 50 ml cylinder volume.
- · Max 50 ml cylinder volume
- · Airline approval required for life vest cylinders
- · Non-life vest CO2/nitrogen cylinders prohibited
On this page · 5 sections
各航空安保机构官方规定
Rules by security authority
United States — TSA
Carry-on
Restricted
Allowed for life vests (up to 2 fitted + 2 spares).
Checked bag
Restricted
Allowed for life vests with airline approval.
Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.
如何打包 Small Compressed Gas Cartridges
随身携带行李: Allowed for life vests (up to 2 fitted + 2 spares).
托运行李: Allowed for life vests with airline approval.
安检通道现场的安检官员拥有决定物品能否通过的最终裁决权。
常见问题解答 (FAQ)
Frequently asked questions
Can you bring Small Compressed Gas Cartridges in a carry-on?
Allowed for life vests (up to 2 fitted + 2 spares).
Can you pack Small Compressed Gas Cartridges in checked luggage?
Allowed for life vests with airline approval.
Can I bring small compressed gas cartridges on an airplane?
Allowed for life vests (up to 2 fitted + 2 spares). In checked bags: Allowed for life vests with airline approval.
Last verified:
Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →