A woman wearing a face mask to help protect against the spread of the new coronavirus crosses a stream in Seoul, South Korea, Wednesday, July 15, 2020. (Photo by Lee Jin-man/AP Photo)
A staff member, wearing a face mask following the coronavirus disease (COVID-19) outbreak, looks at a robot at the venue for the World Artificial Intelligence Conference (WAIC) in Shanghai, China on July 9, 2020. (Photo by Aly Song/Reuters)
Cosplayers wearing face masks pose for a picture at the China Digital Entertainment Expo and Conference (ChinaJoy) in Shanghai, following the coronavirus disease (COVID-19) outbreak, China on July 31, 2020. (Photo by Aly Song/Reuters)
A masked woman poses for a picture during a march demanding justice for the victims of gender violence and femicides in Mexico City, Mexico on August 16, 2020. (Photo by Raquel Cunha/Reuters)
A supporter wears a mask of US President Donald Trump on August 17, 2020 in Mankato, Minnesota as the president delivers remarks on jobs and the economy. (Photo by Kerem Yucel/AFP Photo)
A Saudi trader wears a mask as he monitors stock information at the Saudi stock market in Riyadh, Saudi Arabia on August 25, 2020. (Photo by Ahmed Yosri/Reuters)
Girls wearing protective face masks wait to pray inside temple premises on the occasion of the annual harvest festival of Onam on the outskirts of Kochi, India, August 31, 2020. (Photo by Sivaram V/Reuters)
A Palestinian girl wearing a protective face mask looks on as she sits in a box on the back of a bicycle amid the coronavirus disease (COVID-19) crisis, in Gaza City on September 27, 2020. (Photo by Mohammed Salem/Reuters)