HEPA filter definition

HEPA filter means a high efficiency particulate absolute air filter capable of trapping and retaining 99.97 percent of fibers greater than 0.3 micrometers in mass median aerodynamic diameter equivalent.
HEPA filter means a high efficiency particulate aerosol filter that is at least 99.97 per cent efficient in collecting a 0.3 micrometre aerosol;
HEPA filter means high-efficiency particulate air filters that are rated to achieve a minimum initial particle-removal efficiency of 99,97 % using ASTM F 1471–93;

Examples of HEPA filter in a sentence

  • Vacuum dust with equipment fitted with a HEPA filter and place in a closed, labeled waste container.

  • If a HEPA filter is used to control emissions, the certified efficiency.

  • Use a HEPA filter that is certified to be at least 99.97 percent efficient for 0.3 micron particles.

  • Vacuum dust with equipment fitted with a HEPA filter and place dust in a closed, labeled waste container.

  • All vacuums must be furnished with a HEPA filter which must remove (from the air that passes through) 99.97% of particles that have a size greater than or equal to 0.3 µm.


More Definitions of HEPA filter

HEPA filter means high-efficiency particulate air filters that are rated to achieve a minimum initial particle-removal efficiency of 99.97 per cent using ASTM F 1471– 93 or equivalent standard;
HEPA filter means a High Efficiency Particulate Air filter used to remove particles less than one (1) micron in aerodynamic diameter and operates at removal efficiencies of 99.9 percent or greater.
HEPA filter means a high-efficiency particulate air filter, used in respirators and vacuum systems, capable of capturing particles of 0.3 microns with 99.97% efficiency.
HEPA filter means a high efficiency particulate air filter capable of trapping and retaining at least ninety-nine and ninety-seven hundredths percent (99.97%) of all monodispersed particles of three-tenths (0.3) micrometers in diameter or larger.
HEPA filter means high-efficiency particulate air filters that are rated to achieve a minimum initial particle-removal efficiency of 99.97 per cent using ASTM F 1471–93 or equivalent standard;
HEPA filter means a high efficiency particulate air filter found in respirators and vacuum systems capable of filtering 0.3 micrometer mean aerodynamic diameter particles with 99.7% efficiency or greater.
HEPA filter means a high efficiency particulate air filter certified by the manufacturer to have a collection efficiency of not less than ninety-nine and ninety-seven one hundreths per cent as determined by ASTM D2986-71.