A refrigerating device is provided that includes an evaporator and a compartment that is cooled by air circulating air from and to the evaporator, wherein a diffusion layer can be displaced between a first position, in which air passage openings distributed in a wall separating the compartment from a distribution chamber are covered by the diffusion layer, and a second position, in which the diffusion layer is positioned so as to allow air to flow from the evaporator through the distribution chamber into the compartment while bypassing the diffusion layer.