Vacuum oven is the type of oven which will dry the samples without oxidation and without any residues. Vacuum oven will be the best option, when the samples will be dried under the vacuum conditions or with the help of inert atmosphere (Argon, Nitrogen, Clean Dry Air). The vacuum oven consists of two ports: vacuum port with the needle valve, for connecting the vacuum pump, and the oth... https://www.bionicsscientific.com/laboratory-oven/vacuum-oven.php