Respirators protect the wearer from inhalation of harmful contaminants, such as gases, vapors, or fumes. There are three different types of respirators: an air-purifier, an air-line or air-hose ...

Alabama began using nitrogen gas earlier this year to carry out some executions. The method involves placing a respirator gas ...

Carey Dale Grayson made an expletive outburst and then took several minutes to die in Alabama as he was seen gasping for ...

An Alabama man convicted in the 1994 killing of a female hitchhiker cursed at the prison warden and made obscene gestures ...

The method involves placing a respirator gas mask over the person’s face to replace breathable air with pure nitrogen gas, ...

Spirocco has developed the VOII mask, a metabolic laboratory for use in the field. Its design enables precise metabolic ...

The new execution method involves placing a respirator gas mask over the person's face to replace breathable air with pure ...

Alabama began using nitrogen gas earlier this year to carry out some executions. The method involves placing a respirator gas ...

Carey Dale Grayson, who was convicted of the 1994 killing of Vickie Deblieux, is scheduled to be executed Thursday.

Demand for gas masks is skyrocketing because of fears ... World War I soldiers used respirators to protect against new chemical agents. And in 1938. Fears of another war drove the British ...