HEPA Filtration
What is HEPA?
HEPA Filters were developed by
the Atomic Energy Commission during World War II to remove radio active
dust from their plant exhaust. HEPA Filters (HIGH EFFICIENCY PARTICULATE
ARRESTANCE) are now the primary filtration systems for electronic clean
room assembly, isolation wards, surgical theaters, bioengineering,
pharmaceutical processing, and any application where maximum reduction
or removal of sub micron particulate is required.
99.97% free of particulates
HEPA filtered air is 99.97%
free of all particulate down to 0.3 microns (including bacteria, fungal and other opportunistic micro biological). Because of this, HEPA is
rapidly coming into many medical applications such as isolation of
patients under treatment involving immunological isolation, care for
burn victims, orthopedic surgery, etc.
Efficiency
The HEPA filter maintains its
efficiency over it's two (2) to five (5) years of life. It is 99.97%
efficient by particle count down to 0.3 micron, which is 1/75,000 of an
inch, or 1/300 the diameter of the human hair. It becomes more efficient
both above and below the 0.3 micron particle size.
Maintenance
HEPA does not require any
cleaning or maintenance to maintain this efficiency. Because all
respirable particulate including bacteria, fungi and other minute
airborne contaminants are trapped in the HEPA filter, the use of HEPA
filtration, when properly applied, will significantly eliminate or
reduce the deleterious health effects of airborne contaminants on the
respiratory system.
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