Air King Wall Mount Fan nutrients-and-supplements Exhaust fans with high CFM

Exhaust fans with high CFM ratings can create too much negative air pressure that the canvas walls flex inward

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Air King Wall Mount Fan nutrients-and-supplements Exhaust fans with high CFMThe 18" Oscillating Wall Mount Fan features a 3 speed 1 20HP motor with both pull chain and front mounted rotary controls and a 7' white power cord. The grills are constructed of a powder coated steel front grill with an impact resistant plastic rear grill. Dimensions: 20. 25"L x 15. 5"W x 23" Weight: 10. 90 lbs.