Introducing the distinguished D series of air coolers by Harbin Dongan Building Sheets Co., Ltd., a premier line of indoor cooling solutions expertly designed to complement condensing units in a variety of cold room environments. Tailored for differing temperature requirements, this remarkable series is segmented into three distinctive sub-series: DL, DD, and DJ. The DL air cooler is optimized for maintaining an ambient temperature around 0ºC, making it an ideal choice for fresh-keeping cold storage facilities. The DD variant excels in environments where temperatures are kept around -18ºC, serving as the perfect companion for mainstream cold storage needs. For more extreme temperature requirements, the DJ air cooler is built to withstand and operate efficiently in temperatures ranging from -25ºC to -30ºC, providing unparalleled performance in blast freezer rooms. Experience the pinnacle of thermal regulation with the D series, crafted to meet and exceed your cooling expectations.