Pre filters or primary filters takes care of coarse particles in air stream. Filters are available in rolls, pads or as finished filters depending on applications. Efficiency ranges from G2 to M5. These are also called secondary filters and takes care of the fine particles in an air stream.
Panel Air Filter are used in industries to retain particles ranging from 1 micron to 50 micron. These filters are basically air intake filters, which is working with negative pressure of systems. These filters are further classified as.
Primary Filter
Secondary Filter
Primary filters:
Primary filters are used for coarse filtration for removal of particles in range of 10 to 50 microns. Primary filter retain coarse particles to avoid further loading on secondary filters & enhance the life of secondary filter. Primary filters are cleanable in nature to obtain good shelf life.
