2020•mSphereOpen access

Effectiveness of Face Masks in Preventing Airborne Transmission of SARS-CoV-2

Hiroshi Ueki, Yuri Furusawa, Kiyoko Iwatsuki‐Horimoto, Masaki Imai, Hiroki Kabata, Hidekazu Nishimura, Yoshihiro Kawaoka

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Abstract

Airborne simulation experiments showed that cotton masks, surgical masks, and N95 masks provide some protection from the transmission of infective SARS-CoV-2 droplets/aerosols; however, medical masks (surgical masks and even N95 masks) could not completely block the transmission of virus droplets/aerosols even when sealed.

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Key concepts: Face masks, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Coronavirus disease 2019 (COVID-19), Transmission (telecommunications), Sars virus, Airborne transmission, 2019-20 coronavirus outbreak, Respirator