Discover the exceptional D Series of air coolers, meticulously crafted by Harbin Dongan Building Sheets Co., Ltd. to deliver unparalleled indoor cooling solutions paired seamlessly with condensing units for a wide array of cold storage environments. This versatile series comprises three distinguished subcategories to cater to varying temperature requirements: the DL, DD, and DJ models. The DL air cooler is expertly designed for environments around 0ºC, making it the ideal choice for fresh-keeping cold storages. For medium cold storage, the DD model is tailored to maintain temperatures around -18ºC, ensuring optimal preservation. For those requiring ultra-low temperatures, the DJ model excels in maintaining environments ranging from -25ºC to -30ºC, making it the perfect fit for blast freezer rooms. Elevate your cold room efficiency and reliability with our D Series air coolers.