坐飞机可以带 梳子暗刀 吗？（美国TSA/加拿大CATSA标准）

严禁携带：属于航空管制危险品，民航安全规定严禁随身带入客舱。

严禁托运：托运行李中同样严禁放置，属于禁止带上民航客机的危险物品。

Standard carry-on baggage size allowances apply; TSA publishes no individual numerical cap for personal use.

If prohibited items like Comb knives are discovered at checkpoint screening, screeners will prohibit entry past the security perimeter. You must voluntarily surrender the item for disposal, return landside to pack it in checked luggage, hand it to a non-traveler, or risk law enforcement referral.

CATSA: No — comb knives is prohibited in carry-on baggage under Transport Canada regulations. In checked bags: No — prohibited in checked luggage under Canadian dangerous goods rules.