According to U.S. Surgeon General Dr. Jerome Adams, anyone can make a mask at home using items such as a hand towel, a bandanna, or an old T-shirt. However, these fabrications alone are really only effective for keeping germs from getting out. In other words, they’re good at halting the spread of germs from a sick person to a healthy one. Without added layers of protection, though, they aren’t likely to actually protect healthy people from breathing dangerous germs in.
That’s where filters come in.
PM2.5 filters are effective down to a diameter of fewer than 2.5 micrometers, which is about 3% the diameter of a human hair. While not as effective an N95 filter, our PM2.5 filters provide anti-bacterial, anti-dust, and anti-pollution protection.