Kf94

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An air particulate filtration standard originating in the Republic of Korea, South Korea, which requires filtration of 94% of air particulates. uncountable

    "However, some fake masks made in China may be labeled KF94, so shoppers still need to do their homework."

  2. 2
    Ellipsis of KF94 filter, a filter implementing the standard. abbreviation, alt-of, countable, ellipsis
  3. 3
    Ellipsis of KF94 mask, a facemask using a filter conforming to the standard. abbreviation, alt-of, countable, ellipsis

    "Unlike cloth masks, high-quality masks — called N95s, KN95s and KF94s — are made with layers of high-tech filtering material that trap at least 94 to 95 percent of the most risky particles."

Example

More examples

"However, some fake masks made in China may be labeled KF94, so shoppers still need to do their homework."

Etymology

Initialism of Korean Filter with 94% filtration efficiency.

More for "kf94"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.