A policeman jumps as he tried to avoid a tear gas grenade thrown back towards police by protesters in the Mathare neighborhood of Nairobi, Kenya Wednesday, July 12, 2023. Kenyans angered by the rising cost of living were back protesting on the streets of the capital, Nairobi, on Wednesday, as they awaited a speech by a longtime opposition leader. (Photo by AP Photo/Stringer)

A Palestinian carries a gas cooker as he walks amidst the debris of a destroyed building in the city of Nuseirat in the central Gaza Strip on April 18, 2024, amid ongoing battles between Israel and the militant Hamas group. (Photo by AFP Photo/Stringer)

Pro-Palestian protesters yell at Orlando Police Department officers after they took two protesters into custody and deployed a noxious gas into the crowd during a rally in Orlando, Fla., Saturday, May 11, 2024. (Photo by Willie J. Allen Jr./Orlando Sentinel via AP Photo)

A police officer fires his tear gas launcher during a clash with student protesters in Surabaya, East Java, Indonesia, Thursday, October 8, 2020. Thousands of enraged students and workers staged rallies across Indonesia on Thursday in opposition to the new law they say will cripple labor rights and harm the environment. (Photo by Trisnadi/AP Photo)

Ballet dancer and performer Ashlee Montague of New York wears a gas mask while she dances in Times Square as the coronavirus disease (COVID-19) outbreak continued in Manhattan, New York City, U.S., March 18, 2020. (Photo by Andrew Kelly/Reuters)

Turkish police detained dozens of demonstrators participating in an LGBT pride march in Istanbul, Turkey on June 26, 2021. Police fired tear gas, rubber bullets and blocked attempts by protesters to gather in large numbers after a government decision to ban pride events in recent years. (Photo by Diego Cupolo/NurPhoto/Rex Features/Shutterstock)

Protesters wear gas masks in the front of the Romanian Environment Ministry in Bucharest March 4, 2019, to demand better air. Dozens of people holding placards reading “Our children don't breath air anymore” gather in the front of the Environment Ministry to ask for better breathable air in Bucharest. (Photo by Daniel Mihailescu/AFP Photo)