respirator

noun

res·​pi·​ra·​tor ˈre-spə-ˌrā-tər How to pronounce respirator (audio)
plural respirators
1
: a mask or device worn over the mouth and nose to protect the respiratory system by filtering out dangerous substances (such as dusts, fumes, or bacteria) from inhaled air

Note: Particulate respirator masks are only able to filter out particles and are not effective against gases or vapors. A numerical rating (such as 95 or 99) is sometimes assigned to such a respirator to indicate the percentage of airborne particles filtered. A letter may also be assigned to indicate whether it is somewhat resistant (R), not resistant (NR), or strongly resistant (P) to the degrading effects of oil on proper respirator function.

2
: a device for maintaining artificial respiration : ventilator sense b

Examples of respirator in a Sentence

Recent Examples on the Web Popular on Variety During a return trip home after a year spent studying in Italy, David learns that his mother plans to disconnect his father’s respirator, as there is no chance of the man emerging from a lengthy coma. Jamie Lang, Variety, 17 May 2024 Rates for personal protective equipment such as face masks, certain respirators and surgical gloves will also increase by 25%. Joey Garrison, USA TODAY, 14 May 2024 Semiconductor tariffs will double from 25% to 50% and certain medical equipment (including PPE, surgical gloves and respirators) will be subject to a 25% tariff. Justin Gomez, ABC News, 14 May 2024 Determined to help his squad, Sam hurled his body on the steel door with so much force, that his respirator shield cracked. Esther Kang, Peoplemag, 7 May 2024 Renee Tajima-Peña, a senior faculty member, stood in a line outside Royce Hall to make a donation for the protesters: solar phone chargers, a poncho, some respirators. Summer Lin, Los Angeles Times, 2 May 2024 Small equals airborne equals hospital isolation rooms, respirator masks, and other costly control measures. Megan Molteni, STAT, 18 Apr. 2024 The agency’s early statements backed employers’ insistence that N95 masks, or respirators, were needed only during certain medical procedures conducted at extremely close distances. Elizabeth Both, NBC News, 18 Mar. 2024 Wildland firefighters eschew respirators since most are bulky and can be operated for only about 30 minutes at a time. ProPublica, 16 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'respirator.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1836, in the meaning defined at sense 1

Time Traveler
The first known use of respirator was in 1836

Dictionary Entries Near respirator

Cite this Entry

“Respirator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respirator. Accessed 27 May. 2024.

Kids Definition

respirator

noun
res·​pi·​ra·​tor ˈres-pə-ˌrāt-ər How to pronounce respirator (audio)
1
: a device covering the mouth and nose especially to prevent the breathing in of harmful substances (as dust or fumes)
2
: a device used to maintain artificial respiration

Medical Definition

respirator

noun
res·​pi·​ra·​tor ˈres-pə-ˌrāt-ər How to pronounce respirator (audio)
1
: a mask or device worn over the mouth and nose to protect the respiratory system by filtering out dangerous substances (as dusts, chemical fumes, or bacteria) from inhaled air

Note: Particulate respirator masks are only able to filter out particles and are not effective against gases or vapors. A numerical rating (such as 95 or 99) is sometimes assigned to a particulate respirator to indicate the percentage of airborne particles filtered. A letter may also be assigned to indicate whether it is somewhat resistant (R), not resistant (NR), or strongly resistant (P) to the degrading effects of oil on proper respirator function.

2
: a device for maintaining artificial respiration : ventilator

More from Merriam-Webster on respirator

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