Abstract: An enclosure configured to house one or more components capable of releasing undesirable gas includes a plurality of walls defining at least two chambers. One of the chambers is configured to house one or more components capable of releasing undesirable gas. The enclosure further includes one or more temperature regulating devices and a heat exchanger assembly. The heat exchanger assembly includes a heat exchanger and at least one fan in fluid communication with the heat exchanger and said one of the chambers. The at least one fan is configured to create a negative pressure in the enclosure for drawing external air into the enclosure, drawing the external air and the undesirable gas released by the one or more components of said one of the chambers into the heat exchanger assembly, and exhausting the external air and the undesirable gas from the enclosure. Other example enclosures are also disclosed.