Each Passenger is allowed to pack one quart-sized bag of liquids, aerosol, gels, creams, and pastes in their carryon bag. These are limited to 3.4 oz (100 mL) or less per item. During TSA security screening, these items must be removed from your carryon for inspection (unless you have been selected for TSA PreCheck expedited screening, in which case you may be exempt from the screening process). Any liquid, aerosol, gel, cream, or paste that triggers an alarm during screening will require additional screening. Medications and infant and child nourishments are exempt from the 3.4 oz limit.