DEHUMIDIFIERS ARE REQUIRED WHEREVER THERE IS A NEED TO LOWER THE HUMIDITY LEVEL TO PREVENT CORROSION MOLD GROWTH AND CONDENSATION OR MAINTAIN A LOW HUMIDITY CONDITION DURING MANUFACTURE PACKAGING OR STORING OF HYGROSCOPIC PRODUCTS. 1 YEAR LIMITED WARRANTY ON PARTS AND 3 YEARS ON THE SEALED REFRIGERATION SYSTEM. COMES WITH 10 FAN SPEED SETTINGS AND DEPENDING ON CFM MEASUREMENTS TAKEN AT THE DUCT OUTLETS TO SET DESIRED MOISTURE EXTRACTION UNIT CAN PROVIDE HIGH EXTRACTION 364 DEEP DRYING 323 OR HIGH EFFICIENCY 286 PINTS PER DAY.