Dust/fibers in my ABS prints

[AJCwebtech]

Hey All,
Has anyone had a problem with dust/fibers in their prints. I bought some ABS filament from Filaments.ca (approx $30 for 1 KG) and every print seems to have these black/grey fibers in it even though I don't see it on the role itself. I tried to clean my print bed (U2) just before printing and adding a sponge filter to the line with no luck. The ABS itself works well, just the dust/fibers that are ruining the prints. Since I am printing a finished product that will not be sanded or printed, this is a problem as it makes the print look defective.

[raysspl]

If it's an open space 3dp, the dust could be from the external environment, especially worse if you have carpet.