A protester in an Elmo mask dances during the Justice for George Floyd Philadelphia Protest on Saturday, May 30, 2020. Demonstrators took to the streets across the United States to protest the death of Floyd, a black man who was killed in police custody in Minneapolis on May 25. (Photo by Matt Rourke/AP Photo)

A climate activist wears an oxygen mask to demonstrate the possibility of pumping oxygen from a tree in a bottle in the future, during a protest against the government's deforestation practices of Sri Lanka's main wildlife forests for developments in Colombo, Sri Lanka on March 22, 2021. (Photo by Dinuka Liyanawatte/Reuters)

A woman wearing a protective face mask makes merit during the Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, in Bangkok, Thailand, April 13, 2022. (Photo by Chalinee Thirasupa/Reuters)

A couple wears face masks as they share a moment during sunset on January 31, 2020 in Hong Kong, China. With over 9800 confirmed cases of Novel coronavirus (2019-nCoV) around the world, the virus has so far claimed over 200 lives. (Photo by Anthony Kwan/Getty Images)

A citizen wearing protective suit shops at a market in Santiago, Chile, April 16, 2020 Chile has taken stringent measures to contain the virus, including imposing a night time curfew, suspending classes, closing non-essential businesses, and mandating the use of face masks on all public transit. (Photo by Jorge Villegas/Xinhua News Agency)

Cheerleaders wearing face masks due to the outbreak of the coronavirus disease (COVID-19) are seen at the first professional baseball league game of the season at Taoyuan International baseball stadium in Taoyuan city, Taiwan, April 11, 2020. (Photo by Ann Wang/Reuters)

A woman wearing a face mask and a child sit between rail tracks, during the imposition of large-scale social restrictions by the government to prevent the spread of the coronavirus disease (COVID-19) in Jakarta, Indonesia, April 12, 2020. (Photo by Willy Kurniawan/Reuters)

A woman in costume of the Prosperity and Wealth God wears a protective face mask at a gold shop in Hanoi, Vietnam, Monday, February 3, 2020. It is a tradition for many Vietnamese to buy gold on the tenth day of the lunar new year – the day of Prosperity and Wealth God, for good luck. (Photo by Hau Dinh/AP Photo)