The TR-6320N is a combination high efficiency (he) particulate filter and acid gas (AG) cartridge for use with TR-600 series PAPRs. 3M™ recommends the use of the TR-6300FC filter cover to help protect the filter from physical damage. The TR-6320 is a combination high efficiency (he) particulate filter and acid gas cartridge for use with TR-600 series PAPRs. This filter may also be suitable for operations where the primary hazard is particulate or certain acid gases, such as in mold remediation, acid cleaning, or plating operations. The TR-6300FC filter cover is also used to hold the TR-6600 prefilter or TR-662 spark arrestor in place. For maximum PAPR system run time, select the TR-632 high capacity battery when using the this cartridge. Versaflo™ 7100021254, Series: TR Series, For Use With: TR-600/800 Series PAPR System, Specifications: Snap-On/Off Connection, White/Magenta