What self-defense weapons are allowed on planes?

(118 ml) container of mace or pepper spray is permitted in checked baggage provided it is equipped with a safety mechanism to prevent accidental discharge. Self-defense sprays containing more than 2 percent by mass of tear gas (CS or CN) are prohibited in checked baggage.



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Toothpaste is considered a liquid by the TSA (Transport Security Agency), even though it's technically a paste. In fact, all pastes, gels, waxes, and lotions are also classified as liquids. And even today, these substances are still restricted by the 3-1-1 rule in hand luggage due to safety threats.

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For example, TSA guidance is very clear: If prohibited items are found during security checks, they won't be returned to their owners. That may vary in other countries, but the general rule is that confiscations are permanent.

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