Download Table | Filtration Efficiency and Pressure Drop Across Materials Tested with Aerosols of Bacillus atrophaeus and Bacteriophage MS2 (30 L/min) a  from publication: Testing the Efficacy of Homemade Masks: Would They Protect in an Influenza Pandemic? | This study examined homemade masks as an alternative to commercial face masks. Several household materials were evaluated for the capacity to block bacterial and viral aerosols. Twenty-one healthy volunteers made their own face masks from cotton t-shirts; the masks were then... | Pandemics, Influenza and Influenza, Human | ResearchGate, the professional network for scientists.