PEF, PeF, or Pef may stand for the following abbreviations: Palestine Exploration Fund. Peak expiratory flow. PEF Private University of Management Vienna. Pentax raw file (see Raw image format) Pentecostal European Fellowship. Perpetual Education Fund. Perpetual Emigration Fund. Pinellas Education Foundation, a nonprofit organization based in Florida. Polyethylene 2,5-furandicarboxylate, a bioplastic material. Preferred Executable Format. Primary energy factor. Princeton Evangelical Fellowship, a Christian campus ministry at Princeton University.
https://en.wikipedia.org/wiki/PEF