With the time feature, you don't even have to worry about turning off your machine. Simply set the timer and the machine will turn off on its own once the time runs out, allowing you to easily give your workshop a thorough cleanse at the end of a day of woodworking without having to be present. Purisystems 1100 air filtration system is widely used in different workspaces, providing multiple benefits for your work environment. It removes films of dirt, debris, particles and fine sawdust particles from the air for improving wood turning, sanding, sawing, chipping and air quality. Specifications Airflow Range(Pa) 1100 CFM Size for 1100 sq.ft Filters(MERV-10) 19.67 x 9.9 x 0.8 in Filters(MERV-12) 19.67 x 9.9 x 0.8 in Unit Dim(LxWxH) 24.6 x 20.1 x 10.6 in Cord 5 ft Power Cord Unit Weight (lbs) 33 lbs Power (115v) 1.8 A Ion Function No