Air France, like all major carriers, strictly prohibits items that pose a safety risk to the aircraft, passengers, or crew. This includes flammable substances (lighter fluid, acetone over 70%, camping gas), explosives (fireworks, signal flares), and toxic materials (pesticides, corrosives, or bleach). Specifically, for checked baggage, Air France bans external batteries and power banks; these must be carried in the cabin to mitigate fire risks. Certain "smart" luggage with non-removable lithium batteries is also banned from both the cabin and the hold. In terms of cabin baggage, sharp objects like knives or scissors with blades longer than 6cm are forbidden. For flights to/from the U.S., there are also restrictions on powder-based substances (like flour or sugar) exceeding 350ml in the cabin. Always check the official "Airbag" tool on the Air France website before packing, as rules can vary based on the destination's local laws regarding weapons, food products, and protected plant species.