Some models report daily energy use around 0.6–0.85 kWh/day. Quiet operation is noted around or below roughly 40–42 dB in several listings. A number of units use compressor cooling, with R600a mentioned for some models.
Reported dimensions in these results range roughly from about 19.5" to 50.98" in height, about 17.4" to 21.85" in width, and about 17.52" to 21.3" in depth, covering small dorm-size footprints up to taller, roomier units.