[MW:21697] Fluorescent Magnetic testing Booth

Dear Experts,

Good day to all experts all over the globe.

I need your valuable comments on how to keep the magnetic particle testing booth to be fully safe for the technicians,

I feel like the booth in my company is not safe enough because it has only one small exhaust to force out the vapors sprayed from the fluorescent ink cans.

1) is there any way to check the air inside the booth/concentration of the spray vs air mixture ?

2) any safety standard reference to follow ?

3) any minimum air inlet passage / and or air outlet passage?

please share with me your comments/standard practice/design in your company.

thanks and regards

raj