@candrian
question - do you fell colophony fumes exhausted from this fume extractor ?
1 yes i fell 100% of colophony outgoing
2 yes i fell 50% of colophony
3 yes i fell just small ammount of it maybe 25%
can you answer to this question ? coz i am using similiar fume extractor from china but with larger filter and power up to 285m3/h and it does the job no more than 10% of colophony (formaldehydes) being exhausted from it
as about hepa dont care coz M5 class prefilter is much more important than it in this setup ...
thx