Filtering
Frequently asked questions (FAQ)
The filter foams are classified according to the unit PPI pores per inch, i.e. the number of pores per inch. As a result this PPI 15 filter foam has 15 pores per inch.
The higher the number, the finer the pores. ( 15 PPI = coarse pores, 60 PPI = fine pores)
Reticulation is a post-treatment of foams to achieve liquid, air or gas permeability. In this process, the cell membranes between the foam webs are removed, but the basic structure of the foam remains intact. Only the thin intermediate skins of the foam are removed, thereby creating an open-cell foam that is permeable to air or liquid.
Filter foams for waste water and exhaust air treatment.? During the so-called reticulation, the cell membranes between the foam webs are removed and the foam develops the air-permeable and water-permeable properties. The coarse to fine-pored filter foams are perfectly suited as ventilation or water filters, which optimally retain impurities. The 100% open cell structure guarantees a high media throughput for the precisely defined filtering process.
