3M Prefilter TR-3600 (100/Case)

• May extend life of HE filter by capturing large particles that may clog the filter
• For use with the 3M Versaflo TR-300 PAPR

When installed inside the filter cover of a TR-300 PAPR, the TR-3600 prefilter can extend the life of the HE filter by capturing large particles that would otherwise clog the HE filter.