Fully automatic, self-cleaning, bagless dust collector for bench applications. On-line filter-cleaning function to automatically clean the main filter without operator assistance. HEPA filter provides 99.97% efficiency on submicron particles, including zirconia, alloy, sand, ceramic, acrylic, and die stone. AutoFlow feature allows user to set to the lowest acceptable speed, and the motors automatically speed up to overcome pressure increase. Separate access doors allow user to remove debris without having to access filter section. Silent operation, making it one of the quietest units on the market (55 dbA at high speeds). 120 volts. 1-year warranty.