The Quest Dual 155 was designed to be placed overhead and out of the way, but can also be placed at ground level for plug and play operation. It is designed to be very energy-efficient. The Quest Dual 155 performs at 7.3 pints per kWh. Compared to most standard dehumidifiers (3.8 pints/kWh), the Quest Dual 155 is nearly twice as efficient. The Quest Dual 155?s horizontal configuration, patent pending dual outlet design and insulated cabinet for quieter operation enable exceptional performance in almost any application. The Quest Dual 155s are plug and play, and therefore require no installation. Optional condensate pump and ducting kits provide the ultimate flexibility for the most challenging space restrictions and specialized applications. MERV-11 filtration is standard on these units, capturing particles (including mold spores) down to 1 micron in size. Made in the USA.