Filament Cleaner Foam Block

As most filaments are made from plastics, they are often statically charged and attract all sorts of debris from around your filament storage or work space.
This anti-static filament cleaner wipes lint, dust, and other dirt before the filament enters your printer's valuable extruder and nozzle. As hot-ends, extruders and nozzles are getting more and more sophisticated and monolithic, repair or replacement is costly and also can incur quite some printer down-time. 
The use of the Filament Cleaner Block will prevent your nozzle from being blocked by a buildup of debris and extend your nozzle's and hot-end's useful life, and keeps you printing without interruption.