Introducing the revolutionary D series of air coolers by Harbin Dongan Building Sheets Co., Ltd., the ultimate solution for all your cold room cooling needs. These state-of-the-art indoor cooling systems are designed to perfectly complement any condensing unit. Crafted to cater to diverse temperature demands, the D series is available in three exceptional sub-series: DL, DD, and DJ. Each is meticulously engineered to deliver optimal performance across various temperature ranges. - **DL Air Cooler**: Ideal for environments around 0ºC, this model is perfect for maintaining the freshness and quality of produce in fresh-keep cold storage facilities. - **DD Air Cooler**: Designed for conditions around -18ºC, this model excels in providing reliable cooling for standard cold storage applications. - **DJ Air Cooler**: Specifically crafted for extreme conditions, it handles temperatures below -25ºC to -30ºC with ease, making it the premium choice for blast freezer rooms. Harness the power of precision cooling with the D series, where advanced technology meets unparalleled efficiency, ensuring your commercial needs are met beyond expectations.