The Protective Qualities of the Gauze Face Mask

This article reports on a series of experiments regarding the efficacy of different forms of gauze face masks. The authors considered it important to establish which masks were most efficacious in preventing droplet infection given the variety of face masks in use and the fact that "the utilization of the face mask to protect the wearer from droplet infection in the presence of those ill with acute infectious diseases is likewise now a well established custom..."