January 2005: Volume 47, Number 1
Cyst Reduction, Turbidity Reduction, Nominal Particulate Reduction, Class I
by Rick Andrew
Manufacturers often test filter systems for the following combination of claims: Cyst Reduction, Turbidity Reduction, and Nominal Particulate Reduction, Class I. All are mechanical filtration claims, meaning that the filtration mechanism is a sieving of particles as opposed to a chemical interaction with an adsorptive or absorptive media...
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