High-volume, low speed (HVLS) fans produce a massive, cylindrical column of air that flows down to the floor and outward in all directions which creates a horizontal floor jet that consistently circulates air in large spaces. This floor jet pushes air a greater distance before air is pulled back vertically toward the fan blades. This smoke analysis video depicts the formation of that floor jet resulting from the concentrated down flow of air from the big fan. Large industrial fans are available under the Kelley and Serco brands. More info at www.entrematic.us.
