Carrier AERO 39M air handling units provide advanced technology and custom features in a streamlined, easy to install package. Indoor and outdoor units are available to handle a wide variety of applications. Units can be equipped with HEPA filters, fully drainable quad-sloped drain pans, AgION antimicrobial-coated steel and other options. The galvanized sealed panel double-wall insulation system allows panels to be easily cleaned without damaging the insulation system. Many fan options are available including forward curved, airfoil, and plenum fans for extra quiet operation. Factory installed controls maintain airflow and ventilation requirements and defend the unit from coil freeze-up, excessive humidity and poor indoor air quality (IAQ).