Masks based on real people's faces are diplayed at the Shuhei Okawara's mask shop in Tokyo, Japan on December 16, 2020. (Photo by Issei Kato/Reuters)

Employees wear "No-Face" masks during working hours at a service company in Handan, Hebei Province of China. As a service company, staff must smile to customers every day. On “No-Face Day”, staff wore masks to hide their facial expressions and allow them to relax. No-Face is a character in the 2001 animated movie “Spirited Away”, a silent masked creature who has no facial expressions.

A dragon mask for the upcoming Lunar New Year hangs on the wall at Lily Hambali's and lion masks and custome maker in Bogor, Indonesia, 02 February 2015. The Chinese Lunar New Year, known here as Imlek, is only three weeks away. The whole city is getting decked out to celebrate the event on 19 February 2015. (Photo by Adi Weda/EPA)

A woman wears a face mask in the part of the city near neighbourhoods known for burning coal for heating in Ulaanbaatar, Mongolia January 26, 2017. Not many people in Ulaanbaatar wear masks to protect themselves against pollution. (Photo by B. Rentsendorj/Reuters)

People wear face masks as they ride an E-scooter in the Old Elbe Tunnel in Hamburg, Germany, Thursday, October 15, 2020. To avoid the spread of the coronavirus the use of a face mask in the 117-year-old tunnel under the Elbe river is mandatory. (Photo by Michael Probst/AP Photo)

A man wearing a protective face mask walks past traditional large puppet figures called “Ondel-ondel”, also donning face masks and displayed along a sidewalk of a main road, as coronavirus disease (COVID-19) cases surge in Jakarta, Indonesia, June 30, 2021. (Photo by Willy Kurniawan/Reuters)

A woman wears a scuba mask and a surgical mask as a precaution against the spread of the new coronavirus, while buying food in a popular market in Lima, Peru, Monday, March 23, 2020. The vast majority of people recover from the COVID-19 disease. (Photo by Rodrigo Abd/AP Photo)

A police officer wearing a Balinese traditional mask, called celuluk, performs as the new coronavirus during a campaign to wear masks as a precaution against the virus outbreak at a market in Bali, Indonesia, Thursday, May 14, 2020. (Photo by Firdia Lisnawati/AP Photo)