FAQ

What is the Depth of Reference Filter?
The Depth of Reference Filter refers to the standard vertical distance used to compare filtration systems, typically measured in meters (m), to assess relative performance. Depth of Reference Filter is usually measured using the Meter for Length. Note that the value of Depth of Reference Filter is always positive.
Can the Depth of Reference Filter be negative?
No, the Depth of Reference Filter, measured in Length cannot be negative.
What unit is used to measure Depth of Reference Filter?
Depth of Reference Filter is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Depth of Reference Filter can be measured.
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