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HEPA

[ hep-uh ]
/ ˈhɛp ə /
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adjective
noting or using an air filter composed of a mat of dense fibers arranged in folds, designed according to federal standards to trap at least 99.97% of airborne particles measuring 0.3 microns in diameter: HEPA vacuums and air purifiers.
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Origin of HEPA

First recorded in 1960–65; abbreviation of h(igh-)e(fficiency) p(articulate) a(ir)

Other definitions for HEPA (2 of 2)

Hep A
[ hep ]
/ hɛp /

noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use HEPA in a sentence

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