Lasko 18" Adjustable Cyclone Pedestal Fan: * Cyclone grill * Three energy-efficient speeds * Fully adjustable height from 22" to 54-1/2" * Optional oscillation for broad room coverage * Cyclone fan tilts to direct air where needed * Patented, fused safety plug * UL and ETL listed * Lasko fan model# 1825 How to Clean a Cyclone Fan Lay the fan face up on a flat surface. The front grille should be facing you. Remove the screws from the rear grille. Place a flat-head screwdriver into the gap between the front and rear grills. Pull the front grille towards you, exposing the fan blade. Do not remove the knobs on either side. Then, wipe the blade with a soft, damp cloth. Use a mild detergent if necessary. Be sure not to touch the motor.