MK G-22 Two Motor Dust Extractors features a two-stage filtering system, with a conical pre-filter as the first filter and a HEPA filter as the second. The HEPA filter can separate 0.3um dust particles with an efficiency greater than 99.97%, securing a high standard of quality and safety

The G-22 extractor uses an unique "reverse-air cleaning" technology which preventing dust from clogging the filter, and thereby maintaining a normal airflow. This feature allows for filter cleaning without having to open the vacuum and create another dust hazard. It is also equipped with a continuous drop-down bagging system for collection and easy handling of dust. As an opinion, MK Vacs can use a normal poly bag for dust collection.