If dehumidifying air is created that requires 70% to 100% recirculating (10 to 30%) ambient air, cooling and heating shall be controlled proportionally during the first dehumidification cooling, since the ambient air environment conditions vary according to the four seasons. The primary dehumidification, cooled air is used to handle the low humidity required by the rotary (honeycomb) dehumidifier, which regulates the low humidity. Low humidity air is supplied to the manufacturer by adjusting the temperature from the final secondary cooling system.