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Introduction to the principle of filtrationWhen fine particles touch a fixed object, the gravitational force between the two surfaces sticks them together, and this is how the filter works. Large particles move in the airflow in an inertial manner. When the airflow encounters an obstacle, the

Air Filter Filtration Grade StandardThe "filtration efficiency" of an air filter is the ratio of the amount of dust captured to the amount of dust in the original air.The meaning of efficiency may seem simple, but its meaning and value vary greatly depending on the test method. Among the factors