not needing a dusty environments.. only something other than a special 'white room' (like for Cpu/electronic)....  try to put a filament cleaner on one of your printer and look at it after using half of the roll (1Kg roll) ...and tell me that you find no dust ...

there is dust anywhere... even if you didn't see it...

a filament dust cleaner (a small bit of sponge around your filament or a small piece of fiber cloth) is ALWAYS a good thing to have...

I think this is one of those things that is commonly overlooked and most likely the cause of many clogged hot ends.

Nice solution. I can see the need for these, especially for people printing in dusty environments, however, we never need to clean our filament before printing.

not needing a dusty environments.. only something other than a special 'white room' (like for Cpu/electronic)....  try to put a filament cleaner on one of your printer and look at it after using half of the roll (1Kg roll) ...and tell me that you find no dust ...

there is dust anywhere... even if you didn't see it...

a filament dust cleaner (a small bit of sponge around your filament or a small piece of fiber cloth) is ALWAYS a good thing to have...

Carl, aside from dust control with some setups the tension can help prevent the spool from unwinding/tangling.

The blue tube going through my cover lid is a piece of silicone aquarium air line. It keeps the filament from dragging against the edge of the through-hole and also from getting a kink in it when I lay the lid back.

Both little things seem to work well.