What are the best materials for making DIY masks?

On average, the homemade masks captured 7% fewer virus particles than the larger bacteria particles. However, all of the homemade materials managed to capture 50% of virus particles or more (with the exception of the scarf at 49%).

Pillowcase and the 100% cotton t-shirt are the best materials for DIY masks. Because they were all easier to breathe through than the surgical mask

Based on particle capture and breathability, the researchers concluded that cotton t-shirts and pillow cases are the best choices for DIY masks.