The CS 1435 wet/dry vacuum cleans its filters without interrupting suction when it detects decreased airflow. An electromagnetic pulse cleaning system maintains maximum suction by shaking filters to remove debris. The 33-lb CS 1435 is a lightweight, rugged vacuum with 6.6-gal capacity. With 130 cfm and 99.93% filtration of particles up to 0.3 microns, it provides a clean and safe work environment. CS Unitec Inc. 800-700-5919.