How should customers prepare their dry ice for checked baggage?

The correct choice emphasizes the importance of ensuring that dry ice is contained in a well-ventilated container when preparing it for checked baggage. This is crucial because dry ice sublimates into carbon dioxide gas, which can build up pressure if the container is sealed improperly. A ventilated container allows for the safe release of gas, mitigating any risks associated with pressure buildup, which can lead to a potential explosion or hazardous situation.

When preparing dry ice for air travel, it’s also essential to follow air carrier regulations, as improper handling and packaging can violate safety protocols and may also pose risks to the passengers and crew on board the aircraft. Using a container that allows gas to escape safely is a critical step in ensuring both compliance with regulations and the safety of all individuals involved.

Other choices suggest methods that either do not comply with safety guidelines or do not adequately address the risks associated with dry ice. For example, marking it as a liquid could misrepresent the material and lead to improper handling. Wrapping dry ice in fabric may not provide the necessary ventilation, and leaving it unmarked entirely disregards the need for labeling hazardous materials appropriately.