I'm cutting PCB's with a Dremel. Works really fine at high speed and with the finest cutting wheel. Can get really nice and clean results.
There's a lot of project and dust so I place next to my third hand a large PC fan at maximum speed oriented to the opposite of me, wear protection glasses for projection and a 3M dust mask for dusts.
But after the cutting there's still a freaking smell in the room and some dust floating in the air.
Are these dangerous? Should I quit and ventilate the room for 15 minutes before continuing to work? I don't know the composition of PCB and I'm asthmatic so…