What potential risk arises from inhaling substances from a tank?

Inhaling substances from a tank can lead to frostbite of the nose or lips, especially when dealing with gases or liquids that are stored at very low temperatures or are cryogenic. These substances can cause contact frostbite on mucous membranes if they are inhaled or if they come into direct contact with skin. When the cold gas or liquid is inhaled, it can rapidly freeze the tissue, resulting in damage and the potential for frostbite symptoms, which may include numbness, discoloration, and pain in the affected area.

This risk is significant in environments where cryogenic gases or refrigerants are used. Awareness of this hazard is crucial for ensuring safety protocols are adhered to and for mitigating the chances of injury in such situations.