Introducing the exceptional D Series Air Coolers: the ultimate indoor cooling solution designed to seamlessly integrate with condensing units for all types of cold rooms. Crafted to perfection by Harbin Dongan Building Sheets Co., Ltd., this versatile range adapts effortlessly to diverse temperature needs with its three specialized sub-series: DL, DD, and DJ. For those seeking a fresh-keeping environment, the DL air cooler is your go-to choice, precisely engineered to maintain temperatures around 0ºC. Elevate your storage capabilities with the DD series, meticulously tuned for approximately -18ºC, ideal for standard cold storage applications. When it comes to achieving extreme cold, the DJ series stands out, expertly designed to sustain temperatures below -25ºC to -30ºC, making it the perfect companion for blast freezer rooms. Experience unparalleled performance and reliability with our user-friendly Cold Room Air Coolers, tailored to meet your precise cooling demands.