24 panels per box
Is a 1/2" nominal thickness. It is a dual layer filter well-suited in a wide range of applications from large aerospace booths to autobody shops. Its high dirt retention design holds contaminants firmly, where booth vibration will cause ordinary filters to release contaminants into the booth. In ASHRAE 52.2 tests, ATI-1 demonstrates 95% initial fractional efficiency at 7.0 to 10.0 microns. This UL 900, classified media provides peak temperature resistance of 250oF, and continuous resistance at 212oF.
