The best (and worst) materials for masks: People making homemade masks might want to reach for a vacuum cleaner filter - Science Daily 09-Jul-2020

The best (and worst) materials for masks: People making homemade masks might want to reach for a vacuum cleaner filter - Science Daily

It's intuitive and scientifically shown that wearing a face covering can help reduce the spread of the novel coronavirus that causes COVID-19. But not all masks are created equal, according to new research.