Evaporative Cooler Pro-Kool blows large volumes of cooled air in a broad stream to cool large areas. Pro-Kool uses the natural cooling process of evaporating water to reduce temperatures up to 30°F and can be used both indoors and outdoors. The portable, rugged design makes it the perfect solution for cooling work areas in any industrial facility when standard air conditioning is ineffective or too lee. THC-1 - Humidity Controller. Save on energy s and avoid saturating the air! Easily attaches to the wall or directly to the Way Cool or Pro-Kool to manage humidity levels with the turn of a dial. Features and Benefits: Industry leader for airflow, with 11,200 cfm on high. Cooling capacity of over 13 tons** to cool up to 3,250 square feet. Approximately 90% lower energy consumption and 75% less expensive to operate than the equivalent capacity portable air conditioner. Automatic low water levels shut-off to prevent pump damage. Built-in 38 gallon water reservoir for standalone use or connect to a garden hose for continuous use. Specially treated, dual water drip over, thick cellulose evaporative pads for increased performance and extended pad life. Ergonomic design with integrated cart and large handle for easy movement. Fits on lift gates for ease of transport. Humidity controller to run the unit based on humidity levels (optional). Dimensions: Base 54" x 34.5" x 74" tall. 220V models available.