Operating Room Air Filtration/Sterilization

"Two units of Aerus air sterilization system will be used in each operating room, and each will be set to high. Units used for the trial will be modified internally to be active and will be sealed to prevent operating room personnel from opening the system and determining a unit's status."

"Two units of Aerus air sterilization system will be used in each operating room, and each will be set to high. Units used for the trial will be modified internally to be inactivated and will be sealed to prevent operating room personnel from opening the system and determining a unit's status. Units will be inactivated by removing the activated carbon, high-efficiency particulate filter, and ionization chamber. However, the fan will remain active as will the run lights."