The DRY GAIR dehumidifiers are based on patented refrigerant technology and are designed for greenhouses and drying rooms. One unit extracts up to 13 gallons of  water/hr.  at 18°C /  80% RH (the higher the humidity/temperature the more water are condensed!).  The units can be hung or positioned along the aisles, rows or greenhouse walls and can be self-controlled or connected to the main control system.