Introducing the exceptional D Series of Air Coolers by Harbin Dongan Building Sheets Co., Ltd. - your ultimate solution for indoor cooling needs! This versatile equipment perfectly complements condensing units, making it a go-to choice for all types of cold rooms. Within this exceptional series, discover our three sub-series tailored for specific temperature ranges: - **DL Air Cooler**: Ideal for maintaining temperatures around 0ºC, it’s your best companion for fresh-keeping cold storage. Experience the freshness preserved like never before! - **DD Air Cooler**: Perfect for temperatures near -18ºC, it is specifically designed to cater to standard cold storage requirements. Ensure the longevity and quality of your stored goods with ease and precision. - **DJ Air Cooler**: This is your specialist for extreme conditions, operating seamlessly in environments ranging from -25ºC to -30ºC. It's the reliable choice for blast freezer rooms, preserving what matters most in the harshest of climates. Choose the D Series for unmatched efficiency and performance in your cold storage endeavors!