Recent Examples on the WebThe filters in Dyson’s cordless models have at least five layers to trap particles of dirt, dust, and allergens that are as small as .3 microns.—Alida Nugent, Better Homes & Gardens, 11 Sep. 2023 These masks have a 95% filtration efficiency rate and can block particles as small as 0.3 microns.—Dorian Smith-Garcia, Parents, 18 Aug. 2023 The vacuum is also complete with a four-stage HEPA filtration system, designed to capture 99.99 percent of dust as small as 0.3 microns.—Amy Schulman, Peoplemag, 1 Sep. 2023 Additionally, the mask has four protective layers and a 95% filtration rate that can block particles as small as 0.075 microns.—Dorian Smith-Garcia, Parents, 18 Aug. 2023 In comparison, the tip of a common pin is about 130 microns in diameter.—Ashok Prasad, The Conversation, 26 June 2023 The fan works to keep you cool and purify the air at the same time, complete with a 360-degree filtration system that removes odors and captures 99.97 percent of particles as small as 0.3 microns.—Amy Schulman, Peoplemag, 11 July 2023 This model also features a HEPA air-filtration system capable of capturing 99.97 percent of particles as small as 0.3 microns.—Brandon Russell, Popular Mechanics, 26 June 2023 Wildfires release enormous amounts of fine particulate matter known as PM2.5—toxins up to 2.5 microns in size, or roughly one-twentieth the diameter of a human hair.—Dhruv Khullar, The New Yorker, 25 June 2023 See More
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'micron.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
New Latin, from Greek mikron, neuter of mikros small — more at micr-
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