3M TR-6590N Versaflo Multi Gas HEPA Replacement Cartridge for TR-600/800 PAPR. Get protection against dust, mists, fumes, gas and vapors (or a combination of these hazards) with 3M Versaflo Powered Air Respirator Filters, TR-600 & TR-800 Series. Our filters are designed to be used with 3M Versaflo Powered Air Blower TR-600 & TR-800 Series and are NIOSH approved. Filters are easy to connect to the blower unit and the 3M Versaflo Powered Air Respirator. High efficiency particulate filter. Captures a broad range of certain gases and vapors, including mercury. Compatible with the 3M Versaflo TR600 and TR-800 PAPR systems. First multigas PAPR cartridge with NIOSH approval for use against mercury. For industrial/occupational use only. Not for consumer sale or use.