Other forms: respirators
A respirator is a device you use to help you breathe, either for a medical reason or to filter out dust, gas, or anything else too nasty to inhale.
Whether you're scraping lead paint off a wall or spray painting a car, you'll want to wear a respirator. Military members and police officers sometimes use respirators known as "gas masks" to protect themselves from fumes emitted during wars and riots. Some respirators simply purify the air that moves through them, while others, like those used in hospitals, provide oxygen. The Latin root of respirator is respirare, "breathe in and out."