Introducing the D series of air coolers from Harbin Dongan Building Sheets Co., Ltd., a premier choice for indoor cooling solutions designed to work harmoniously with condensing units across a variety of cold room environments. This innovative lineup is tailored for different temperature requirements, offering three specialized sub-series: the DL, DD, and DJ. The DL series is expertly crafted for maintaining temperatures around 0ºC, making it ideal for fresh-keep cold storage facilities. On the other hand, the DD series is perfectly suited for colder environments, operating efficiently around -18ºC, primarily for general cold storage use. For the ultimate in freezing capability, the DJ series is engineered to handle extreme cold, with temperatures plunging below -25ºC to -30ºC, specifically designed for blast freezer rooms. Experience unparalleled cooling performance with our cutting-edge technology, ensuring your storage needs are impeccably met.