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HVLS fans work on the principle that a breeze moving across your skin on a very hot day feels good. The cool moving air breaks up the moisture-saturated boundary layer (also known as perspiration) surrounding the body and accelerates evaporation to produce a cooling effect.


No matter their size, ceiling fans produce a column of air as they turn. This column of air moves down and out along the floor, which called a horizontal floor jet, once the floor jet reaches its potential, it migrates outward until it meets a side wall or other vertical surface, to every nook and corner of the workspace.