Dust collectors collect dirt, dust, contaminants and small particulates, which gather on the surface of the filters. A.C.T. Nano-Elite high-efficiency cartridge filters remove 99.9% of the particulate from the air stream. They carry a MERV 15 rating (best in the industry). The cleaned air is then directed to the location of your choice, either returned to the facility or exhausted to the environment. We recently published a blog addressing this topic called What is MERV Rating and Why is it Important? We offer a wide selection of cartridge dust collector filters that fit your industrial dust collection needs.