Wizz Air maintains strict safety and size restrictions for both cabin and checked baggage. Prohibited items include flammable substances, explosives, corrosive materials (except small thermometers), and weapons of any kind, including realistic replicas. Regarding electronics, lithium batteries are a major focus: individual batteries must not exceed 100Wh (or 160Wh with prior approval), and spare batteries must be in carry-on bags only. For cabin baggage, Wizz Air is known for its small free allowance (40 x 30 x 20 cm); any bag exceeding these dimensions or the weight limit (usually 10kg for priority) will be moved to the hold for a high gate fee. Additionally, sharp objects like scissors or knives with blades over 6cm are not allowed in the cabin. Unlike some full-service carriers, Wizz Air also strictly prohibits the consumption of your own alcohol on board, even if purchased at duty-free.