Carbon Dust from Weller Zero Smog EL

[EEeng]

Hi,

We purchased two of the weller zero smog EL fume extractors after Dave pointed them out in the fire sale.

We noticed some carbon dust after first unboxing and cleaned it up before starting it. But have noticed more dust on surfaces around the unit and again more under the filter.

Is everyone else experiencing the same?

Thanks

EEeng.