Environmental interventions for control and prevention of infection include such things as methods for disinfection and sterilization of surfaces and equipment, use of high-efficiency particulate air filtration, positive air pressure rooms, frequency of room air exchanges, hand hygiene, and the use of standard barriers for body fluids.  Guidelines for environmental precautions for patients with neutropenia have been identified by the Infectious Diseases Society of America and Centers for Disease Control and Prevention. Routine use of protective gear and reverse isolation for patients with neutropenia is not currently part of these recommendations.