What’s the best material for a face mask?

According to the CDC, surgical masks and N95s should be saved for healthcare workers. They recommend that the public wear cloth masks. The material your mask is made out of affects how well it protects you. It also affects how well you can breathe through it and how your skin responds to it.

The best choice for a homemade mask is tightly woven, 100% cotton. It is effective, yet gentle on the skin. An air filter company called Smart Air did a study comparing mask fabrics. They found that cotton provides a good balance of protection and breathability. You can watch a video on how to make your own mask here. 

Smartair’s study showed natural fibers like cotton filter better than synthetic fibers like polyester. Scarves and bandanas were the least effective. Denim and canvas worked well and were breathable, but would be too rough on the skin.