EurekAlert  May 18, 2021 A team of researchers in the US (George Washington University, UC Riverside, US Naval Academy) designed and fabricated electrospun air filters using ultrafine nanofibers (∼300 nm) which have much smaller pore size in comparison to the surgical mask and cloth masks. They used a coronavirus strain served as a SARS-CoV-2 surrogate to generate aerosols for filtration efficiency tests. The air filters showed excellent performance by capturing up to 99.9% of coronavirus aerosols, which outperformed many commercial face masks. They found that the same electrospun air filter or face mask removed NaCl aerosols equivalently or less effectively in […]