The new “Big Round Filter” (BRF) from Imperial Systems combines ease of operation and service with superior reliability and a three-year warranty. The reverse air dust collector uses a design that minimizes the number of moving parts, reducing wear, the company says. The BRF has a self-contained cleaning system that requires no plant compressed air and uses a reliable, easy-to-maintain rotating arm, the company adds. The BRF is suitable for collection of woodworking dust generated from cabinet, flooring, furniture and sawmill operations.