Word.ws English Dictionary

fit factor

fit factor noun: a quantitative metric that measures how well a particular mask or respirator fits to a specific individual's face, defined as the ratio of the ambient concentration of aerosol particles to the concentration within the facepiece during use.

Noun

fit factor (plural fit factors)

  1. A quantitative metric that measures how well a particular mask or respirator fits to a specific individual's face, defined as the ratio of the ambient concentration of aerosol particles to the concentration within the facepiece during use.

Forms of fit factor

pluralfit factors

Questions about fit factor

What does fit factor mean?
Fit factor means a quantitative metric that measures how well a particular mask or respirator fits to a specific individual's face, defined as the ratio of the ambient concentration of aerosol particles to the concentration within the facepiece during use.
What part of speech is fit factor?
Fit factor is a noun.
What is the plural of fit factor?
The plural of fit factor is fit factors.

Words near fit factor in the dictionary

  1. fit as fiddles
  2. fit check
  3. fit checked
  4. fit checking
  5. fit checks
  6. fit factor
  7. fit factors
  8. fit for a king
  9. fit for purpose
  10. fit in
  11. fit into

Source and license

Adapted from Wiktionary: fit factor (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “fit factor.” Word.ws, https://word.ws/fit_factor. Based on Wiktionary, CC BY-SA 4.0.