1.Write the full meaning of DOP & HEPA
and its efficiency.
DOP : Dioctyl
Phthalate .Dioctyl Pthanate test is used to determine the integrity of HEPA
filters.
HEPA: High Efficiency Particulate Air Filter (HEPA) is a filtering system. HEPA filter capable of
retaining 99.97 percent of particles as small as 0.3 mm. It is a disposable, extended media dry type filter
in a rigid frame.
Efficiency: 99.97%
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