Multi‑purpose ripening air cooler for fruit warehouse is designed for flexible storage and ethylene ripening of banana, avocado, tomato, mango and other climacteric fruits. Equipped with oversized small‑ΔT coil, EEV, EC variable‑speed fans and hot‑gas defrost system. Multiple fruit working profiles enable fast parameter switching to meet different temperature, humidity and airflow requirements. Optional epoxy‑hydrophilic coated coil for corrosive coastal and pack‑house environments.