Introducing the exceptional D Series Air Cooler by Harbin Dongan Building Sheets Co., Ltd. - the ultimate solution for all your cold room cooling needs! This innovative line of indoor cooling equipment pairs perfectly with condensing units, ensuring optimal performance in various cold storage environments. Tailored for diverse temperature requirements, the D Series comprises three distinct sub-series: DL, DD, and DJ. - **DL Air Cooler**: Designed for environments around 0ºC, this model is ideal for fresh-keeping cold storage, maintaining the perfect conditions to preserve your perishables. - **DD Air Cooler**: Engineered for temperatures around -18ºC, this version is perfect for standard cold storage, keeping your goods chilled to perfection. - **DJ Air Cooler**: Crafted for extreme conditions, with capacities to handle temperatures as low as -25ºC to -30ºC, it's specially designed for blast freezer rooms, ensuring maximum efficiency in ultra-cold applications. Experience unparalleled cooling performance with the D Series Air Coolers - your dependable partner in achieving precise temperature control for any cold room requirement.