AHU Systems or Air Handling Units are widely used to regulate and circulate air. They are designed to flow air for ventilating, air-conditioning and heating. These units are designed with a huge metal box having ventilators to ensure efficient supply of air. The box also has heating and cooling coils, air filter racks or chambers, dampers, etc. They connect to ductwork to distribute the air throughout the building. These AHU Systems are one of the best ways of keeping the quality of air high and ensuring no suffocation.