Hobby WW here & wondering if there is something published besides the wearing a filter & testing to see if your taking in too much dust per OSHA regulations. The OSHA web site states that "excessive" amounts of dust are a problem. I'm wondering besides actual filter/lab testing is there a any simple guideline as to what is "excessive" amounts. As in hearing protection OSHA lists so many decibels per a time limit for exposure and there are lists of tools/engines of how many DB's there putting out, you can get an App to measure & nine times out of ten your ears will tell you immediately if you need hearing protection.
I'll work on a project for a few weeks than maybe a month or 2 later start another, never more than 6 hs a day in the shop.. I have a POS wall mounted dust collector with a 1 micron bag which works OK with Jointer, planer & TS, but small tools sander,router,ect, DC is not so great, when dust is looking bad I'll wear an N95 until I'm finished with the task.
I'm thinking of upgrading my DC system to a Jet 1100 cfm & canister filter but that's about as far as I think I need take it.
Thanks