25 Litres Vaccine Carrier is commonly used for outreach sessions because it is smaller and easier to travel than refrigerated cartons. This is essential for knowing how to use it during an immunization session and keeping it in good working order to protect vaccines. Vaccines and diluents are kept chilled in 25 Litres Vaccine Carrier while in transportation. This carrier is easier to carry while walking because they are lighter and smaller than cold boxes. It is very effective to use.