Hello forum members,
We perform our compressed air tetsing twice a year, and in the last testing we found significant amount of ash-like and char-like soot.
The lab the we used indicates the established normal range as 0-60/cubic meter of air .Our result is approx. 200/cubic meter per each.
We use compressed air for blowing packaging containers before filling with the product, to remove possible foreign objects.
The question is what amount is harmful to ingest?