MC91 is the most versatile and efficient cooler on the market. Its design packs a powerful blast of cooling air via a patented winged prop and four panels on three sides of high-density rigid media. The MC91 features oscillating louvers that allow cool air to reach a wide area in a quiet and efficient means. The toggle and turn-dial temperature controls make it easy for you to adjust between the four temperature settings to obtain optimal cooling anywhere you take the MC91 Evaporative Cooler.

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Airflow Delivery 11,000 CFM
Cooling Area 3,000 Sq. Ft.
Water Reservoir 32.8 Gallons
Motor 3/4 HP
Dimensions 46″D x 26″W x 59″H
Weight 125 lbs

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High density rigid media pad for better cooling efficiency
External water hose hook-up
Easy to use control with Power, Swing & Pump switches
Manual water-fill door
Water level display
x4 Easy-roll Casters


Mechanical Version


Rotary Switch/Motor Speed Has 4 positions. (Clockwise from OFF)

OFF, LOW Fan Only, MED Fan Only, HI Fan Only.

Pump Switch

Controls the pump

Middle Rocker Switch

Controls the fan Oscillation

Power Switch

Controls power to the main controls, it will be lit when it is in the ON position, dark when OFF. When it is OFF the other switches will not function.