The Respiratory Protection Effectiveness Clinical Trial
Washington D.C. Veterans Affairs Medical Center
Johns Hopkins University School of Medicine/Johns Hopkins Hospital

      Despite widespread use of respiratory protective equipment in the U.S. healthcare workplace,
      there is very little clinical evidence that respirators prevent healthcare personnel (HCP)
      from airborne infectious diseases. Scientific investigation of this issue has been quite
      complicated, primarily because the use of respirators has become "the standard of care" for
      protection against airborne diseases in some instances, even without sufficient evidence to
      support their use. The key question remains: How well do respirators prevent airborne
      infectious diseases? The answer to this important question has important medical, public
      health, political and economic implications.
    
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