Cool your workspace as much as 26 degrees with a portable Cool-Space evaporative cooler that runs without a water hose! These large reservoir coolers operate up to 8 hours after filled with water and disconnecting the water hose. This allows operation in areas where continuous water supplies are not available or hard to reach. 8" thick cooling pads for maximum cooling -- even in harsh humid environments. No installation, no freon, no compressor, no maintenance. Cool-Space technology combines water and forced air to reduce temperatures. Only a water source and a 115 Volt outlet are needed. Constructed of durable corrosion free polyethylene with a heavy duty steel fan and enclosed motor. Light enough to roll around with one hand and easily fits through doorways. 16" size is 2 speed - 25-3/4" x 24" x 44", weight - 86 lbs. 36" size is variable drive- 62" x 31-1/2" x 61-1/2", weight - 295 lbs.