The investigators primary goal is thus to determine whether filtering and sterilizing operating room air reduces a composite of serious surgical site infections, infection-related complications, and death within 30 days after surgery. The investigators will determine the effect of air filtration and sterilization on serious surgical site infections, and on the cost of care. infections, and on the cost of care.
Determine whether operating room air filtration and sterilization with the Aerus system reduces a composite of serious surgical site infections, infection-related complications, and death within 30 days after surgery.