Japanese moving company ART CORPORATION's employee shows "mask frame" which the company invented for their employees to reduce breathing difficulties during work, following the coronavirus disease (COVID-19) outbreak, at the company's training facility "ART moving training house" in Sagamihara, Kanagawa Prefecture, Japan November 22, 2020. The training facility, which was built to raise the quality of customer service and train skills of employees, trains between 1,500 and 2,000 employees every year. REUTERS/Kim Kyung-Hoon

Bar hostesses Kasumi Mizusawa wearing a 'face veil mask' and Yuri Ichinose wearing face shield, following the coronavirus disease (COVID-19) outbreak, toast with a customer at the club 'Ashida' in Tokyo, Japan November 16, 2020. Japanese Kimono maker Otoduki who invented the mask said it was inspired by the cloth masks worn by belly dancers, and it helps hostesses, dancers and musicians who should constantly adjust masks at their work. REUTERS/Kim Kyung-Hoon

Bar hostesses Kasumi Mizusawa wearing a 'face veil mask' and Yuri Ichinose wearing face shield, following the coronavirus disease (COVID-19) outbreak, prepare to open the bar at the club 'Ashida' in Tokyo, Japan November 16, 2020. Japanese Kimono maker Otoduki who invented the mask said it was inspired by the cloth masks worn by belly dancers, and it helps hostesses, dancers and musicians who should constantly adjust masks at their work. REUTERS/Kim Kyung-Hoon

Bar hostess Kasumi Mizusawa wearing a 'face veil mask', following the coronavirus disease (COVID-19) outbreak, opens the mask to drink as she talks to a customer at the club 'Ashida' in Tokyo, Japan November 16, 2020. Japanese Kimono maker Otoduki who invented the mask said it was inspired by the cloth masks worn by belly dancers, and it helps hostesses, dancers and musicians who should constantly adjust masks at their work. REUTERS/Kim Kyung-Hoon

Bar hostesses Kasumi Mizusawa wearing a 'face veil mask' and Yuri Ichinose wearing face shield, following the coronavirus disease (COVID-19) outbreak, greet a customer at the club 'Ashida' in Tokyo, Japan November 16, 2020. Japanese Kimono maker Otoduki who invented the mask said it was inspired by the cloth masks worn by belly dancers, and it helps hostesses, dancers and musicians who should constantly adjust masks at their work. REUTERS/Kim Kyung-Hoon

Bar hostess Kasumi Mizusawa shows her 'face veil mask' to her colleague Yuri Ichinose, following the coronavirus disease (COVID-19) outbreak, at the club 'Ashida' in Tokyo, Japan November 16, 2020. Japanese Kimono maker Otoduki who invented the mask said it was inspired by the cloth masks worn by belly dancers, and it helps hostesses, dancers and musicians who should constantly adjust masks at their work. REUTERS/Kim Kyung-Hoon

Bar hostess Yuri Ichinose helps Kasumi Mizusawa to wear a 'face veil mask', following the coronavirus disease (COVID-19) outbreak, at the club 'Ashida' in Tokyo, Japan November 16, 2020. Japanese Kimono maker Otoduki which invented the mask said it was inspired by the cloth masks worn by belly dancers, and it helps hostesses, dancers and musicians who should constantly adjust masks at their work. REUTERS/Kim Kyung-Hoon REFILE - CORRECTING NAME OF THE CLUB

Friends Vinicius Sanctus and Alessandro Russo ride electric monowheels called 'nuvem' (cloud) that were invented by them and inspired by the magic flying brooms of the Harry Potter series in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Paulista Avenue in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Friends Vinicius Sanctus and Alessandro Russo ride electric monowheels called 'nuvem' (cloud) that were invented by them and inspired by the magic flying brooms of the Harry Potter series in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli TPX IMAGES OF THE DAY

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Vinicius Sanctus rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Alessandro Russo and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Friends Vinicius Sanctus and Alessandro Russo ride electric monowheels called 'nuvem' (cloud) that were invented by them and inspired by the magic flying brooms of the Harry Potter series at Paulista Avenue in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Minhocao bridge in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Alessandro Russo rides an electric monowheel called 'nuvem' (cloud), which he invented with his friend Vinicius Sanctus and is inspired by the magic flying brooms of the Harry Potter series, at Paulista Avenue in Sao Paulo, Brazil November 7, 2020. Picture taken November 7, 2020. REUTERS/Amanda Perobelli

Industrial designer and teacher Ubiratan Bizarro Costa tightens a screw on a bionic glove he invented for conductor and pianist Joao Carlos Martins, who after many years lost the ability to play due to health complications from focal dystonia, in Sumare, Sao Paulo state, Brazil October 29, 2020. Picture taken October 29, 2020. REUTERS/Amanda Perobelli

Industrial designer and teacher Ubiratan Bizarro Costa puts on a bionic glove he invented for conductor and pianist Joao Carlos Martins, who after many years lost the ability to play due to health complications from focal dystonia, in Sumare, Sao Paulo state, Brazil October 29, 2020. Picture taken October 29, 2020. REUTERS/Amanda Perobelli

Industrial designer and teacher Ubiratan Bizarro Costa tightens a screw on a bionic glove he invented for conductor and pianist Joao Carlos Martins, who after many years lost the ability to play due to health complications from focal dystonia, in Sumare, Sao Paulo state, Brazil October 29, 2020. Picture taken October 29, 2020. REUTERS/Amanda Perobelli

UC San Diego chemistry professor Michael Burkart (R) is seen in a lab where he and his students are making algae into flip-flops after inventing a way to make renewable and biodegradable polyurethanes from algae they grow in a greenhouse on campus in UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

UC San Diego chemistry professor Michael Burkart poses for a picture as he and his students are making flip-flops after inventing a way to make renewable and biodegradable polyurethanes from algae they grow in a greenhouse lab on campus at UC San Diego, in San Diego, California, U.S., August 12, 2020. REUTERS/Mike Blake

Cremated cow bones are seen near a mobile crematorium invented by local engineer Carlos Ayo (not pictured) to alleviate the backlog of bodies at local crematoriums during the outbreak of the coronavirus disease (COVID-19), in La Paz, Bolivia August 4, 2020. REUTERS/David Mercado

A worker assembles a mobile crematorium invented by local engineer Carlos Ayo (not pictured) to alleviate the backlog of bodies at local crematoriums during the outbreak of the coronavirus disease (COVID-19), in La Paz, Bolivia, August 4, 2020. REUTERS/David Mercado

Carlos Ayo poses in front of a mobile crematorium he invented to alleviate the backlog of bodies at local crematoriums during the outbreak of the coronavirus disease (COVID-19), in La Paz, Bolivia August 4, 2020. REUTERS/David Mercado

Syrian refugee students and instructor, Yasine Hariri, use his invention that is a robot prototype that automatically dispenses sanitiser to avoid contact and combat the spread of the coronavirus disease (COVID-19) as a part of the camp's UNHCR-led Innovation Lab program, at the Zaatari refugee camp in the Jordanian city of Mafraq, near the border with Syria, July 14, 2020. Picture taken July 14, 2020. REUTERS/ Muhammad Hamed

Syrian refugee students and instructor, Yasine Hariri, use his invention that is a robot prototype that automatically dispenses sanitiser to avoid contact and combat the spread of the coronavirus disease (COVID-19) as a part of the camp's UNHCR-led Innovation Lab program, at the Zaatari refugee camp in the Jordanian city of Mafraq, near the border with Syria, July 14, 2020. Picture taken July 14, 2020. REUTERS/ Muhammad Hamed

Syrian refugee students and instructor, Yasine Hariri, use his invention that is a robot prototype that automatically dispenses sanitiser to avoid contact and combat the spread of the coronavirus disease (COVID-19) as a part of the camp's UNHCR-led Innovation Lab program, at the Zaatari refugee camp in the Jordanian city of Mafraq, near the border with Syria, July 14, 2020. Picture taken July 14, 2020. REUTERS/Muhammad Hamed

Syrian refugee students watch one of their trainer invention that is a robot prototype that automatically dispenses sanitiser to avoid contact and combat the spread of the coronavirus disease (COVID-19) as part of the camp's UNHCR-led Innovation Lab program, at the Zaatari refugee camp in the Jordanian city of Mafraq, near the border with Syria, July 14, 2020. Picture taken July 14, 2020. REUTERS/ Muhammad Hamed

An Israeli researcher, part of a team which say they have invented a reusable face mask that can disinfect itself and kill the coronavirus disease (COVID-19), takes part in a demonstration for Reuters at a laboratory in Haifa, northern Israel June 10, 2020. Picture taken June 10, 2020. REUTERS/Amir Cohen

Israeli Professor Yair Ein-Eli, who led the research team which say they have invented a reusable face mask that can disinfect itself and kill the coronavirus disease (COVID-19), takes part in a demonstration for Reuters at a laboratory in Haifa, northern Israel June 10, 2020. Picture taken June 10, 2020. REUTERS/Amir Cohen

An Israeli researcher, part of a team which say they have invented a reusable face mask that can disinfect itself and kill the coronavirus disease (COVID-19), takes part in a demonstration for Reuters at a laboratory in Haifa, northern Israel June 10, 2020. Picture taken June 10, 2020. REUTERS/Amir Cohen

Reusable face masks invented by Israeli researchers which say can disinfect itself and kill the coronavirus disease (COVID-19) are seen during a demonstration for Reuters at a laboratory in Haifa, northern Israel June 10, 2020. Picture taken June 10, 2020. REUTERS/Amir Cohen

An Israeli researcher, part of a team which say they have invented a reusable face mask that can disinfect itself and kill the coronavirus disease (COVID-19), takes part in a demonstration for Reuters at a laboratory in Haifa, northern Israel June 10, 2020. Picture taken June 10, 2020. REUTERS/Amir Cohen

Prop maker Rob West assembles a respiratory shield he co-invented to be donated to Southern California's medical community inside the bar of the closed American Legion Post 397 during the outbreak of the coronavirus disease (COVID-19), in Monterey Park, California, U.S., May 28, 2020. REUTERS/Mario Anzuoni

Prop maker Rob West assembles a respiratory shield he co-invented to be donated to Southern California's medical community inside the bar of the closed American Legion Post 397 during the outbreak of the coronavirus disease (COVID-19), in Monterey Park, California, U.S., May 28, 2020. REUTERS/Mario Anzuoni

Prop maker Rob West assembles a respiratory shield he co-invented to be donated to Southern California's medical community inside the bar of the closed American Legion Post 397 during the outbreak of the coronavirus disease (COVID-19), in Monterey Park, California, U.S., May 28, 2020. REUTERS/Mario Anzuoni

Prop maker Rob West assembles a respiratory shield he co-invented to be donated to Southern California's medical community inside the bar of the closed American Legion Post 397 during the outbreak of the coronavirus disease (COVID-19), in Monterey Park, California, U.S., May 28, 2020. REUTERS/Mario Anzuoni

Prop maker Rob West assembles a respiratory shield he co-invented to be donated to Southern California's medical community inside the bar of the closed American Legion Post 397 during the outbreak of the coronavirus disease (COVID-19), in Monterey Park, California, U.S., May 28, 2020. REUTERS/Mario Anzuoni

Prop maker Rob West assembles a respiratory shield he co-invented to be donated to Southern California's medical community inside the bar of the closed American Legion Post 397 during the outbreak of the coronavirus disease (COVID-19), in Monterey Park, California, U.S., May 28, 2020. REUTERS/Mario Anzuoni

An employee of an Israeli company shows a mask fitted with a mechanical mouth that opens to enable diners to eat without taking it off, as the coronavirus disease (COVID-19) restrictions ease, at Avtipus Patents and Inventions lab in Or Yehuda, Israel May 18, 2020. REUTERS/Amir Cohen

Meir Gitelis, co-developer of an Israeli company, eats while wearing a mask fitted with a mechanical mouth that opens to enable diners to eat without taking it off, as the coronavirus disease (COVID-19) restrictions ease, at Avtipus Patents and Inventions lab in Or Yehuda, Israel May 18, 2020. REUTERS/Amir Cohen

Meir Gitelis, co-developer of an Israeli company, eats while wearing a mask fitted with a mechanical mouth that opens to enable diners to eat without taking it off, as the coronavirus disease (COVID-19) restrictions ease, at Avtipus Patents and Inventions lab in Or Yehuda, Israel May 18, 2020. REUTERS/Amir Cohen

An employee looks at a screen displaying a computer image of a face mask fitted with a mechanical mouth that opens to enable diners to eat without taking it off, as the coronavirus disease (COVID-19) restrictions ease, at Avtipus Patents and Inventions lab in Or Yehuda, Israel May 18, 2020. REUTERS/Amir Cohen

Wojciech Glac, neurobiologist at the University of Gdansk, explains how to play a board game he invented called "Infection" on the novel coronavirus and the human immune system, during an interview with Reuters as the spread of the coronavirus disease (COVID-19) continues in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Wojciech Glac, neurobiologist at the University of Gdansk, gestures during an interview with Reuters about a board game he invented called "Infection" on the novel coronavirus and the human immune system, as the spread of the coronavirus disease (COVID-19) continues in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Wojciech Glac, neurobiologist at the University of Gdansk, throws board game pieces as he poses for a photograph during an interview with Reuters about a board game he invented called "Infection" on the novel coronavirus and the human immune system, as the spread of the coronavirus disease (COVID-19) continues, in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Wojciech Glac, neurobiologist at the University of Gdansk, shows a board game piece depicting a virus during an interview with Reuters about a board game he invented called "Infection" on the novel coronavirus and the human immune system, as the spread of the coronavirus disease (COVID-19) continues in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Wojciech Glac, neurobiologist at the University of Gdansk, looks on during an interview with Reuters about a board game he invented called "Infection" on the novel coronavirus and the human immune system, as the spread of the coronavirus disease (COVID-19) continues in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Wojciech Glac, neurobiologist at the University of Gdansk, shows a board game he invented called "Infection" on the novel coronavirus and the human immune system, during an interview with Reuters, as the spread of the coronavirus disease (COVID-19) continues, in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

A board game on the novel coronavirus and the human immune system called "Infection", invented by Wojciech Glac, a neurobiologist at the University of Gdansk, is pictured, as the spread of the coronavirus disease (COVID-19) continues in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Karolina Topa, a biology teacher, and her boyfriend Marek Grudkowski play the "Infection" board game about the novel coronavirus and the human immune system, invented by Gdansk University neurobiologist Wojciech Glac, as the spread of the coronavirus disease (COVID-19) continues in Gdansk, Poland, May 13, 2020. Picture taken May 13, 2020. REUTERS/Matej Leskovsek

Wojciech Glac, neurobiologist at the University of Gdansk, shows a board game piece depicting a virus during an interview with Reuters about a board game he invented called "Infection" on the novel coronavirus and the human immune system, as the spread of the coronavirus disease (COVID-19) continues, in Wejherowo, Poland, May 12, 2020. Picture taken May 12, 2020. REUTERS/Matej Leskovsek

Karolina Topa, a biology teacher, uses the "Infection" board game about the novel coronavirus and the human immune system, invented by Gdansk University neurobiologist Wojciech Glac, during an online class with her pupils, as the spread of the coronavirus disease (COVID-19) continues in Gdansk, Poland, May 13, 2020. Picture taken May 13, 2020. REUTERS/Matej Leskovsek

Karolina Topa, a biology teacher, and her boyfriend Marek Grudkowski play the "Infection" board game about the novel coronavirus and the human immune system, invented by Gdansk University neurobiologist Wojciech Glac, as the spread of the coronavirus disease (COVID-19) continues in Gdansk, Poland, May 13, 2020. Picture taken May 13, 2020. REUTERS/Matej Leskovsek TPX IMAGES OF THE DAY

Karolina Topa, a biology teacher, uses the "Infection" board game about the novel coronavirus and the human immune system, invented by Gdansk University neurobiologist Wojciech Glac, during an online class with her pupils, as the spread of the coronavirus disease (COVID-19) continues in Gdansk, Poland, May 13, 2020. Picture taken May 13, 2020. REUTERS/Matej Leskovsek

NASA Administrator Jim Bridenstine shows U.S. President Donald Trump an oxygen hood and other inventions from NASA engineers to help combat the coronavirus disease (COVID-19) outbreak, at the White House in Washington, U.S. April 24, 2020. REUTERS/Jonathan Ernst

NASA Administrator Jim Bridenstine shows U.S. President Donald Trump an oxygen hood and other inventions from NASA engineers to help combat the coronavirus disease (COVID-19) outbreak, at the White House in Washington, U.S. April 24, 2020. REUTERS/Jonathan Ernst

NASA Administrator Jim Bridenstine shows U.S. President Donald Trump an oxygen hood and other inventions from NASA engineers to help combat the coronavirus disease (COVID-19) outbreak, at the White House in Washington, U.S. April 24, 2020. REUTERS/Jonathan Ernst

NASA Administrator Jim Bridenstine, with NASA Associate Administrator Bettina Inclan and NASA Jet Propulsion Laboratory Associate Director Dave Gallagher, shows U.S. President Donald Trump inventions from NASA engineers to help combat the coronavirus disease (COVID-19) outbreak, at the White House in Washington, U.S. April 24, 2020. REUTERS/Jonathan Ernst

NASA Administrator Jim Bridenstine, with NASA Associate Administrator Bettina Inclan and NASA Jet Propulsion Laboratory Associate Director Dave Gallagher, shows U.S. President Donald Trump inventions from NASA engineers to help combat the coronavirus disease (COVID-19) outbreak, at the White House in Washington, U.S., April 24, 2020. REUTERS/Jonathan Ernst