filterklasse
Filterklasse (German for "filter class") is a generic term used to describe the category or class of a filtration device or process according to its performance characteristics. The concept is context-dependent and there is no single universal standard for what constitutes a given filter class.
A filter class is typically defined by factors such as pore size or retention rating (often expressed
In practice, different domains use different classification schemes. In air filtration, classes often reflect particle removal
The purpose of a filter class is to enable comparability and appropriate selection for safety, hygiene, or