Home » Air Handling Units Air Handling Units Stages Itemized Ventilation Heating Humidification Sanitization More than 30 years in the Development, Design, Manufacture, Supply and Commissioning of air handling units equipment. Thread type heater catalog A want technical assistance Air handling units are compact units that allow a controlled environment to be maintained. This type of equipment injects or extracts air according to the customer’s need. Air handling units can have different options according to requirement.