Our “Top of the Line” unit, now more powerful and larger than any other. Expands to a giant 30 trays so you can dry large quantities all at once! 500 watts of drying power means you can dry more, faster. Patented Converga-Flow™ fan forces heated the air up the exterior pressurized chamber, then horizontally across each individual tray, converging in the center, for fast, even and nutritious drying. No flavor mixing! No need for tray rotation. Fast, Powerful Fan! A quiet, 2,400-RPM motor and specially designed 4-1/2 inch fan mean faster, more nutritious drying. Four times faster than dryers which have no fan or motors. Vita-Saveﾮ Exterior! The opaque exterior blocks light to retain more of the mushroom’s nutrients and vitamins during the drying process. Expandable to meet your needs! As needs grow, this four-tray unit can be expanded with accessory Add-A-Traysﾮ, up to 30 trays (30 sq. ft.) Drying pressure adjusts automatically to the number of trays.