Researchers have developed a special type of cotton face mask that kills up to 99.9999 percent of bacteria and viruses within 60 minutes of daylight exposure
Investigators have developed and tested the respirator, which can be sterilized, used in a hospital setting, and earned a 100 percent success rate for fit testing
New study tests the effectiveness of different fabrics at filtering particles between 0.02 and 0.1 micrometers—about the size of most viruses—at high speeds
EPFL researchers have developed a filter "paper" made from titanium oxide nanowires which is capable of trapping pathogens and destroying them with light