Prefilters
Prefilters are typically the first stage in a filter system and protect higher-quality, fine dust filters from becoming clogged or damaged by coarse dust. They come in a variety of shapes and sizes; from rolls of filter media, which provide a cost effective first filter stage, to pleated panel filters that pack large filter areas into a compact frame. These kind of filters are used to separate coarse dust like insects, textile fibers, hair, sand, airborne ash, and pollen.
