HEPA filter

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HEPA filter

[′hep·ə ‚fil·tər]
(mechanical engineering)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

HEPA filter

A high efficiency particulate absolute filter capable of trapping and retaining at least 99.9% of asbestos fibers greater than 0.3 microns in length.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Remember that the current recommendation is to vaccinate all children 12 to 23 months old with HepA, in 2 separate doses.
Based on the evidence to recommendations framework, other considerations were assessed, such as recent HAV outbreaks (8), HAV-related hospitalizations and deaths, treatment costs for liver transplants, and the benefits and costs associated with HepA vaccination (https://www.cdc.gov/vaccines/acip/recs/ grade/table-refs.html).
Hepa is joining a college basketball program that produced eventual National Basketball Association players Cory Joseph, Tristan Thompson, Myles Turner, PJ Tucker and most importantly, Kevin Durant.
However, Hepa opted to remain in the United States where he is ranked as a four-star power forward after his stellar showing for Barrow High School in Alaska, where he was hailed as Gatorade Alaska Boys Basketball Player of the Year Awards twice before transferring to Jefferson High School in Portland, Oregon.
"What we found quite often was that qualified people and equipment to run HEPA tests [were hard to come across].
HEPA and ULPA filters are leak tested using the descriptions in IEST RP-CC034.3, HEPA and ULPA Filter Leak Tests.
AAF recognizes this and has developed new HEPA and ULPA filters, featuring NELIOR Filtration Technology, that meet the most stringent requirements of individual industries.
Beyond having a HEPA filter, managers should be aware of two issues when considering an upright:
All chamber openings were closed and inlet air was filtered through HEPA filters.
The air purifiers ran for 7 days with the HEPA filter inserted and another 7 days without.
After analyzing their data, the researchers found portable HEPA filters reduced the average concentrations of fine particulates inside homes by 60 pc and woodsmoke by 75 pc, and their use was associated with improved endothelial function (a 9.4 pc increase in reactive hyperemia index) and decreased inflammation (a 32.6 pc decrease in C-reactive protein).