Updated on Aug. 5, 2016. Delta is redefining the products it offers customers to further distinguish the choices available to them. Delta will offer best-in-class options for each of its customer segments with innovative multi-cabin experiences. Customers will have five products to choose from, including Delta One, First Class and Delta Comfort+ which offer premium amenities. Main Cabin and Basic Economy service will offer value options with Delta's high standards of service.
Rating Newest Oldest. Best Answer: The can gets cold for the same reason that any other refrigeration unit gets cold. (eg air conditioner, refrigerator, dehumidifier). Inside of the can, there is a chemical which can be used as a refrigerant. It's a chemical with a low vapor pressure. When you press the button on top of the can, you open a valve and release some of the pressure from the can.
Air pressure in the chest cavity and lungs is reduced, and because gas flows from high pressure to low, air from the environment flows through the nose or mouth into the lungs. As we exhale, the diaphragm moves upward and the chest wall muscles relax, causing the chest cavity to contract. Air pressure in the lungs rises, so air flows from the lungs and up and out of respiratory system through the nose or mouth.