(AHU) is a machine that handles heats, cools, cleans & humidifies and circulates airflow in a commercial kitchen, restaurant, cafe or shisha cafe. AHUs are components of complete (HVAC) systems. AHUs are large metallic boxes comprising of a blower, filter racks, sound Attenuators, and cooling and/or heating coils. Connected to the HVAC’s duct work, AHUs are installed inside and outside of buildings, with the rooftop being common for the latter.installation work at the yard. The heat exchangers, cooling coils and evaporators can be delivered in any type of materials by customer demands.