High Efficiency Particulate Air Filter

{
  "id": "MLC-T-ENV-013238",
  "term": "High Efficiency Particulate Air Filter",
  "field": "Environment",
  "definitions": [
    "1. A filtering system capable of trapping and retaining at least 99.97 percent of all monodispersed particles 0.3 micro-meter in diameter or larger.\n\n2. Type of control device that uses a filter composed of a mat of randomly arranged fibers and is designed to remove at least 99.97 percent of airborne particles that are 0.3 micrometers or larger in diameter.\n\n3. Filtering system capable of trapping and retaining at least 99.97 percent of all monodispersed particles 0.3 µm in diameter or larger.\n\n4. Filter that has a 99.97 percent reduction efficiency for 0.3 micron aerosol.\n\n5. A filter that is at least 99.97 percent efficient in removing monodispersed particles of 0.3 microns in diameter. (NIOSH has exclusive authority for testing and certification of respirators and filter media, with the exception of certain mine emergency devices as described in 42 CFR 84.) For respirators, the equivalent filter under the rule is the P100 filter.",
    "A type of pleated mechanical air filter. This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm)."
  ],
  "abbreviation": "HEPA filter",
  "subject": "Air",
  "references": [
    "DOE Glossary of Terms Related to CERCLA, EPCRA, PPA, RCRA and TSCA at http://homer.ornl.gov/sesa/environment/guidance/cercla/gloss97.pdf",
    "40 CFR 63.11511 (CFR 2013)",
    "40 CFR 763.83 (CFR 2013)",
    "40 CFR 63.742 (CFR 2013)",
    "EPA Emergency Responder Health and Safety Manual - Chapter 4: Respiratory Protection Program",
    "Glossary for Air Pollution Terms in Particle Pollution and Your Patients' Health"
  ],
  "url": "https://mlchart.com/terminology/environment/high-efficiency-particulate-air-filter/"
}