These commercial electrostatic filters use the principle of a unitized filter bank to outperform many metal mesh filters in heavy-duty industrial applications. They offer greater efficiency, low resistance to airflow, easy cleaning, durability under high velocity conditions and more. No messy tacifier sprays are required, and the filters do not need electrical hookups or system modifications. The filters are available in 1/4- and one-, two- and four-in. thickness. Custom sizes available.
Permatron Corp., 11400 Melrose St., Franklin Park, IL 60131-1325; 847/451-0999; 847/451-1811; www.permatron.com.