In their article entitled “Do OA Economizers Make ‘Cents’ in Hospitals?” Koenigshofer and Roberts detail the costs and savings of utilizing outside air economizers in hospital ventilation systems. They concluded that these systems do not make “cents” in hospitals. The findings have major implications for building codes throughout the U.S. 

The packaged DOAS has capacities from 3 ton up to 70 ton at up to 20,000 cfm, providing 100 percent outside air.