Hello, i'm currently taking some summer classes at my college and was assigned a project to transport vaccines from one location to another (travel time ~2-5 hours.) We have to keep the vaccine within the range of 35-46 degrees Fahrenheit at all times. My group and I came up with the idea of putting 36 degree vaccines in a vacuum chamber and assuming that temperature change for the duration of the trip would not change, therefore eliminating the need for some sort of refrigeration unit. If the outside temperature is between 20-50 degrees, will the vaccine be able to maintain a temperature within the range, or are we missing a big piece of science behind a vacuum chamber? Thanks and have a great day!