Pack of five replacement 3M Adflo pre-filters.
 
Regular replacement of the Adflo pre-filter extends the life of the particle filter, saving money while also increasing the Adflo battery run-time
Inspect your pre-filter regularly for any damage, clogging or breakthrough
Do not attempt to clean the pre-filter
Five replacement pre-filters per pack
Replace once to twice a week depending on use
For use with the Adflo system and 3M Speedglas™ welding helmet or 3M Versaflo M-Series face shield