Face masks and respirators: Can they prevent viruses like H1N1 (Swine flu)?

With flu season upon us, many people are wondering what precautions they can take to prevent transmission of the H1N1 (swine flu) virus. Facemasks, which refer to disposable masks like the ones health workers occasionally wear, are designed to block large particle droplets, splashes, and sprays from reaching the wearer’s mouth and nose. Continue reading