Systems and methods are provided for conditioning air inside an enclosure. The systems and methods may comprise: (1) a plurality of flow tunnels for passage of a heat-transfer fluid; (2) a thermoelectric cooler in thermal communication with the flow tunnels for thermally conditioning the heat-transfer fluid in the flow tunnels; (3) an air inlet for receiving unconditioned air; (4) a thermal exchange assembly for facilitating thermal exchange between the thermally conditioned heat-transfer fluid and the unconditioned air to result in conditioning of the air; and (5) an air outlet for outputting the conditioned air into the enclosure.