respirator

American  

[res-puh-rey-ter] / ˈrɛs pəˌreɪ tər /

noun

1. a masklike device, usually of nonwoven fibrous materials, as fiberglass paper, wool felt, or polypropylene, worn over the mouth, or nose and mouth, to prevent the inhalation of noxious substances, pathogens, or the like.

   Respirators are essential protective equipment for healthcare providers during an outbreak.

2. Medicine/Medical. ventilator.

3. British. gas mask.

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respirator British  

/ ˈrɛspəˌreɪtə /

noun

1. an apparatus for providing long-term artificial respiration

2. Also called: gas mask.  a device worn over the mouth and nose to prevent inhalation of noxious fumes or to warm cold air before it is breathed

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Etymology

Origin of respirator

First recorded in 1835–40; from Latin respīrāt(us), past participle of respīrāre “to recover one's breath” + -or agent suffix; see origin at respire, -or ²

Compare meaning

How does respirator compare to similar and commonly confused words? Explore the most common comparisons:

• ventilator vs. respirator

Explanation

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."

Example Sentences

Li suffers from an incurable genetic disease that progressively weakens hismuscles, and he relies on an artificial respirator to survive.

From Barron's • Jan. 29, 2026

Nearly two weeks after the Eaton fire forced Claire Robinson to flee her Altadena home, she returned, donning a white hazmat suit, a respirator and goggles.

From Los Angeles Times • Jan. 30, 2025

The Centers for Disease Control and Prevention recommends that dairy workers don a respirator and goggles or a face shield, among other protections, whether they are working with sick animals or not.

From Salon • Aug. 27, 2024

And for the rest of her life she was dependent on a wheelchair operated by a tongue-touch keypad, a respirator that delivered 13 breaths a minute and ultimately a voice-activated computer to write.

From New York Times • Feb. 9, 2024

Anyone entering the rooms was to have full protection —Tyvek suit, respirator, and gloves.

From "The Hot Zone" by Richard Preston