Protective Face Masks and filters

3M™ Versaflo™ Prefilter TR-6600/37354(AAD), for TR-600 PAPR, 50 EA/Case. The TR-6600 prefilter can extend the service life of the particulate (HE) element of TR-600 series filters and cartridges by capturing large particles that may otherwise clog the HE filter. Frequent prefilter changeout may help optimize PAPR system performance.

3M™ Versaflo™ Filter Cover TR-6700FC/37356(AAD), for TR-6710ANZ Filter, 1 EA/Case. The TR-6700FC is a filter cover for use with the TR-6710N filter. 3M recommends the use of the filter cover in order to help physically protect the TR-6710N from damage. It is also used to hold the TR-6600 Prefilter or TR-662 Spark Arrestor in place.