HEPA filter

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HEPA filter

[′hep·ə ‚fil·tər]
(mechanical engineering)

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.
References in periodicals archive ?
A new vacuum bag for the HEPA or non-HEPA vacuum was installed before vacuuming in each participating home.
Homes were cleaned according to the hard surfaces protocol recommended in the HUD guidelines as an interim measure for removing lead-contaminated dust (11) using one of the following combinations of detergent and vacuum: a) TSP detergent and a Nilfisk GS80 HEPA vacuum (Malvern, PA), b) TSP and a Eureka World Vacuum model 6865 (Bloomington, IL) with no HEPA filter, or c) Spic `n' Span (non-TSP) and Eureka World Vacuum model 6865 with no HEPA filter (selected based on its retail availability throughout northern New Jersey).
Select Brands displayed second-generation Sunbeam uprights and canisters with HEPA filtration.
The company, a maker of vacuum cleaner bags -- top-selling cleaner bags, according to its in-house data -- is now shipping a line of HEPA filters made with ULPA (ultra-low-penetration air) material, which the company claims surpasses the efficiency rate of other HEPA filters on the market.
Tenders are invited for HEPA Filtered Ventilation Units
The filtration of the fume hood is controlled by a fan that draws in air from the laboratory and passes it through a HEPA H14 filter, which is more than 99.
This system draws airborne powders away from a workstation into a containment HEPA filter (99.
This is followed by a second stage using HEPA filtration technology.
Few consumers know that HEPA means high-efficiency particulate air, but many know to look for the acronym.