are portable AC units designed to cool down large rooms, manufacturing facilities or outdoor spaces.
They work by drawing in ambient air, pushing it over a closed-loop coil cooled by refrigerant and pumping it back into the space. The coil cools and removes humidity from the air, creating leftover condensation that drains out into a hose or catch bucket.
can operate in any location with an electrical power source, and attached wheels make them easy to move.
finding a place to let out the exhaust can make setup in enclosed spaces more difficult. After cooling the air, spot coolers pump leftover warm air out through a flexible exhaust tube.
This tube is usually extendible, and it must lead out through a door, window or drop ceiling to prevent warm air from re-entering the space.