Airline regulations regarding the transport of liquids, aerosols, and gels (LAGs) in carry-on baggage apply to fragrances. Typically, these regulations limit individual containers to a maximum volume of 3.4 ounces (100 milliliters), and all such containers must fit within a single, quart-sized, clear plastic, zip-top bag. This restriction is commonly referred to as the 3-1-1 rule. Fragrances in checked baggage are generally less restricted, though limitations on flammable materials may apply depending on the airline and destination. Checking airline-specific guidelines before travel is always recommended.
These regulations are crucial for maintaining aviation safety and security. By limiting the amount of LAGs in carry-on baggage, the potential risks associated with flammable liquids and the concealment of prohibited substances are minimized. Adhering to these rules ensures a smoother and safer travel experience for all passengers. These security measures were significantly enhanced following security incidents in the early 2000s, leading to a global standardization of LAGs restrictions in carry-on luggage.