The filter has a smaller pore size than normal N95 masks, potentially blocking more virus particles, according the researchers from King Abdullah University of Science and Technology in Saudi Arabia NEW DELHI : Researchers have developed a more efficient membrane filter that can be attached to a regular N95 mask and replaced when needed.
The filter has a smaller pore size than normal N95 masks, potentially blocking more virus particles, according the researchers from King Abdullah University of Science and Technology (KAUST) in Saudi Arabia.
Since the outbreak of COVID-19, there's been a worldwide shortage of face masks -- particularly the N95 ones worn by health care workers, they said.