Methods to monitor air quality help

I work at a university, someone in the sculpture department raise concerns about air quality in the sculpture studio. Specifically regarding the welding area.

The room is large and students/instructors use welding equipment, woodworking equipment (we have several dust collectors for these) metal working, wax work, and other things all in the room.

I know next to nothing about welding. More of a chemistry/bio safety guy

The only equipment we already own to monitor air quality is a device that records the number of Air bourne particles per time increment (hourly, min, etc). The device tells me how many of the recorded particles are above or below 2.0um. Thats it.

I can't help but wonder if there is a better monitor I should use given welding fumes are the concern.

Advice?