Established in 1978, Marc Climatic Controls, Inc. specializes in the design and manufacture of industrial air conditioning, heating, pressurization, and air filtration products and systems. Larger systems may include redundant packaged units complete with indoor and outdoor ductwork and a temperature & humidity control panel. Among the products offered by Marc Climatic are packaged, split, wall mount, and room air conditioners; pressurization units; gas-phase air filtration units; heaters; and corrosion prevention coatings.