Which filter floss (polyester cotton like stuff) is safe?

  • We are currently upgrading MFK. thanks! -neo
I just bought some of this stuff from an LFS and it says that it must be washed in warm water before use. It might be a good idea to do that with any polyester fibre you buy.
 
Ill do that thank you :) Grabbin it today I gotta go return my lemon laptop anyways.
 
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