In order to maintain the safety and security of all passengers during air travel, certain items are restricted from being carried in cabin baggage. These items include, but are not limited to, explosives, flammable substances, sharp objects, and firearms. Additionally, liquids, gels, and aerosols exceeding the maximum allowed quantity of 100 milliliters per container are not permitted in cabin baggage. Other prohibited items include self-defense sprays, corrosive substances, and certain types of battery-powered devices. It is important for passengers to familiarize themselves with these restrictions and to check with the airline they are traveling with for a comprehensive list of items that are not allowed in cabin baggage.