Doctor Zhao Hui poses with a box of the new COVID-19 vaccine, produced by Chinese pharmaceutical firm CanSino Biologics, that is inhaled rather than administered via injection, at the United Family Hospital in Shanghai's Pudong district, China October 28, 2022. REUTERS/Casey Hall 

Neighbors hold a minute of silence while paying their respects to the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

Relatives are comforted after the arrival of the coffins with the bodies of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

Coffins with the bodies of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, are seen in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

A relative holds the coffin of one of the members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

Relatives carry the coffin of one of the members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

A relative arranges framed pictures over the coffin of one of the members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

Neighbors pray in front of the coffins of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

Relatives mourn while standing next to the coffin of one of the members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 7, 2022. REUTERS/Sandra Sebastian 

Neighbors help to unload a truck transporting the coffins with the bodies of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

People pray after the arrival of the coffins with the bodies of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Neighbors gather to support the relatives of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, while waiting for the coffins in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Neighbors gather around a truck transporting the coffins with the bodies of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire ongoing overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Relatives of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, react while arriving at the scene in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

A reporter sits outside the house of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Neighbors prepare tortillas for the people attending the wake for the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

A relative of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, is comforted while waiting for their bodies for a wake, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Friends and neighbors prepare the graves for the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, at a cemetery in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Women arrange an altar with framed pictures of members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Framed pictures of members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, are seen on an altar, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Women arrange an altar with framed pictures of members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

A woman pays her respects at an altar with framed pictures of members of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Neighbors prepare food for the people attending the wake for the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

A relative of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, is comforted while waiting for their bodies for a wake, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

A relative of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, walks out of their home in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

Neighbors react while passing by the house of the late Gomez family, who died from carbon dioxide inhalation after they left a cooking fire going overnight, in the municipality of Magdalena Milpas Altas, Guatemala September 6, 2022. REUTERS/Sandra Sebastian 

A protester inhales herbs to counteract the effects of tear gas during a confrontation with security personnel after Ecuador's armed forces warned they would not allow ongoing protests against President Guillermo Lasso's economic policies to damage the country's democracy, in Quito, Ecuador June 21, 2022. REUTERS/Santiago Arcos 

A man inhales marijuana smoke during the 420 Hippie Hill cannabis festival as marijuana enthusiasts mark the annual but informal cannabis holiday, 4/20 (four-twenty), corresponding to the numerical figure widely recognized within the cannabis subculture as a symbol for all things related to marijuana, at Golden Gate Park in San Francisco, California U.S., April 20, 2022. REUTERS/Carlos Barria 

A man inhales marijuana smoke during the 420 Hippie Hill cannabis festival as marijuana enthusiasts mark the annual but informal cannabis holiday, 4/20 (four-twenty), corresponding to the numerical figure widely recognized within the cannabis subculture as a symbol for all things related to marijuana, at Golden Gate Park in San Francisco, California U.S., April 20, 2022. REUTERS/Carlos Barria 

A woman inhales marijuana smoke during the 420 Hippie Hill cannabis festival as marijuana enthusiasts mark the annual but informal cannabis holiday, 4/20 (four-twenty), corresponding to the numerical figure widely recognized within the cannabis subculture as a symbol for all things related to marijuana, at Golden Gate Park in San Francisco, California U.S., April 20, 2022. REUTERS/Carlos Barria 

Graciela Mori Reategui (C), who suffers from the coronavirus disease (COVID-19), covers herself with a sheet while inhaling a eucalyptus treatment given to her by a local health group in Pucallpa, Peru March 9, 2021. Picture taken March 9, 2021. REUTERS/Sebastian Castaneda 

Graciela Mori Reategui, accompanied by her husband, both of whom suffer from the coronavirus disease (COVID-19), covers herself with a sheet while inhaling a eucalyptus treatment given to her by a local health group in Pucallpa, Peru March 9, 2021. Picture taken March 9, 2021. REUTERS/Sebastian Castaneda 

Graciela Mori Reategui (C), accompanied by her husband (L), both of whom suffer from the coronavirus disease (COVID-19), prepares to inhale a eucalyptus treatment given to her by a local health group in Pucallpa, Peru March 9, 2021. Picture taken March 9, 2021. REUTERS/Sebastian Castaneda 

A Palestinian demonstrator is helped after inhaling tear gas during a protest against Israeli settlements, In Beit Dajan in the Israeli-occupied West Bank January 22, 2021. REUTERS/Raneen Sawafta 

Cricket - Second Test - England v Pakistan - Ageas Bowl, Southampton, Britain - August 13, 2020 England's Stuart Broad uses an inhaler during a break in play, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19) Stu Forster/Pool via REUTERS 

A woman, who was tear gassed by federal law enforcement officials, tries to breathe after getting washed with water and using an inhaler provided by volunteers during a protest against police violence and racial inequality in Portland, Oregon, U.S., July 27, 2020. REUTERS/Caitlin Ochs 

Inhalation ridden by Hollie Doyle goes on to win the Betway Handicap (Class 5), as racing resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19), Great Yarmouth, Britain, June 3, 2020. Dan Abraham/Pool via REUTERS 

Inhalation ridden by Hollie Doyle goes on to win the Betway Handicap (Class 5), as racing resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19), Great Yarmouth, Britain, June 3, 2020. Dan Abraham/Pool via REUTERS 

Inhalation ridden by Hollie Doyle goes on to win the Betway Handicap (Class 5), as racing resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19), Great Yarmouth, Britain, June 3, 2020. Dan Abraham/Pool via REUTERS 

A woman holds her inhaler and leans on another person after being sprayed with mace by police officers during a protest near the Minneapolis Police third precinct after a white police officer was caught on a bystander's video pressing his knee into the neck of African-American man George Floyd, who later died at a hospital, in Minneapolis, Minnesota, U.S. May 27, 2020. REUTERS/Eric Miller TPX IMAGES OF THE DAY 

Volunteer dentists convert snorkel masks into respirators, using 3D printing technology, to reinforce hospitals and help patients suffering from the coronavirus disease (COVID-19) in Algiers, Algeria April 15, 2020. Picture taken April 15, 2020. REUTERS/Ramzi Boudina 

U.S. Surgeon General Jerome Adams holds up his own personal asthma inhaler as President Donald Trump listens to Adams discuss the effect of pre-existing conditions in the U.S. African-American community during the coronavirus response daily briefing at the White House in Washington, U.S., April 10, 2020. REUTERS/Yuri Gripas 

U.S. Surgeon General Jerome Adams holds up his own personal asthma inhaler as President Donald Trump watches and listens to Adams discuss the effect of pre-existing conditions in the U.S. African-American community during the coronavirus response daily briefing at the White House in Washington, U.S., April 10, 2020. REUTERS/Yuri Gripas 

A woman is treated by paramedics after inhaling tear gas during a tteachers' strike against the government in Bogota, Colombia February 21, 2020. REUTERS/Luisa Gonzalez 

A boy covers his face to avoid inhaling tear gas during a protest on a teachers' strike against the government in Bogota, Colombia February 21, 2020. REUTERS/Luisa Gonzalez 

A worker holds a respirator containing a nanofibrous layer at the Pardam nanotechnology factory in Roudnice nad Labem, Czech Republic, January 30, 2020. REUTERS/David W Cerny 

A worker checks a nanofibrous layer used to produce respirators at the Pardam nanotechnology factory in Roudnice nad Labem, Czech Republic, January 30, 2020. REUTERS/David W Cerny 

Respirators containing nanofibrous layers are pictured at the Pardam nanotechnology factory in Roudnice nad Labem, Czech Republic, January 30, 2020. REUTERS/David W Cerny 

An elderly Palestinian demonstrator reacts after inhaling tear gas during an anti-Israel protest at the Israel-Gaza border fence, in the southern Gaza Strip December 6, 2019. REUTERS/Ibraheem Abu Mustafa 

A youth inhales an oxygen can during a Global Climate Strike rally as smog covers the city due to the forest fires in Palangka Raya, Central Kalimantan province, Indonesia, September 20, 2019. REUTERS/Willy Kurniawan 

A man receives medical attention after inhaling tear gas, near Causeway Bay station in Hong Kong, China September 8, 2019. REUTERS/Anushree Fadnavis 

A man covers his face to avoid inhaling smoke as a wildfire burns in the village of Makrimalli on the island of Evia, Greece, August 14, 2019. REUTERS/Costas Baltas 

A woman covers her face to avoid inhaling smoke as a wildfire burns in the village of Makrimalli on the island of Evia, Greece, August 14, 2019. REUTERS/Costas Baltas 

A Palestinian paramedic tends to a clergyman after inhaling tear gas fired by Israeli forces during a protest against Bahrain's workshop for U.S. peace plan, near the Jewish settlement of Beit El, in the Israeli-occupied West Bank June 25, 2019. REUTERS/Mohamad Torokman 

Medics evacuate a Palestinian woman who inhaled tear gas fired by Israeli forces during a protest at the Israel-Gaza border fence, in the southern Gaza Strip June 21, 2019. REUTERS/Ibraheem Abu Mustafa 

A medic tends to a Palestinian boy who inhaled tear gas fired by Israeli forces during a protest at the Israel-Gaza border fence, in the southern Gaza Strip June 21, 2019. REUTERS/Ibraheem Abu Mustafa 

Palestinian paramedics evacuate their colleague who inhaled tear gas fired by Israeli forces during a protest at the Israel-Gaza border fence, in the southern Gaza Strip June 21, 2019. REUTERS/Ibraheem Abu Mustafa 

An anti-government supporter sits on the ground after inhaling teargas during a protest in Tirana, Albania, June 2, 2019. REUTERS/Florion Goga 

A Palestinian woman reacts after inhaling tear gas fired by Israeli forces during a protest marking Land Day and the first anniversary of a surge of border protests, at the Israel-Gaza border fence, in the southern Gaza Strip March 30, 2019. REUTERS/Ashraf Abu Amrah TPX IMAGES OF THE DAY 

A Palestinian woman reacts after inhaling tear gas fired by Israeli forces during a protest marking Land Day and the first anniversary of a surge of border protests, at the Israel-Gaza border fence, in the southern Gaza Strip March 30, 2019. REUTERS/Ashraf Abu Amrah