What is the maximum volume of self-defense spray allowed in checked baggage?

The maximum volume of self-defense spray allowed in checked baggage is 4 fluid ounces. This regulation aligns with safety protocols designed to minimize risks associated with potentially dangerous items on commercial flights. The 4-ounce limit is established to ensure that passengers can carry self-defense items while not jeopardizing the safety of others on board.

Allowing this quantity means it can provide adequate self-defense capability without posing a fire hazard or other risks associated with larger containers of spray. The guidelines regarding these items take into account their active ingredients and potential for misuse, balancing personal safety needs with the collective safety of all passengers and crew.