“The gas mask overlay will now fade in and out depending if you’re in gas or not,” Raven explained. “This way, players can equip the gas mask at any time without having their vision impacted.

Louisiana plans to use nitrogen gas to execute death row inmate Jessie Hoffman next week. Here's what to know about the method and why its controversial.

Now put your books down…and get your gas masks out. Quietly. Now take them carefully out of their boxes - no, no, Isobel, don't drag at it…you show her how to do it, Margaret, will you.

"Check the seal on your mask and the filters before going inside," said Gilmore. "When you feel like freaking out, take a breath and realize that you're not breathing in any CS gas. You should ...

More than 40 million gas masks were issued. In America there was a gas mask for children that looked like Mickey Mouse, with the character's nose and ears and even a picture of him on the gas filter.