Prof. Martin Fischer has worked with Duke physician Eric Westman to prove that masking is an effective safeguard against COVID-19 and determined which types of masks worked the best. Their Science Advances paper can be read online here, Duke Health's article "Inexpensive, Accessible Device Provides Visual Proof that Masks Block Droplets" is here, and Trinity College's "Here's Visible Proof Masks Work" here.
Department of Physics
