Quote Originally Posted by Scott Bernstein View Post
... I don't recall exactly what the numbers were before but well over five digits. Let's just say there was so much dust in the air I could barely see the numbers on the monitor. ...
5 digits!!!! OMG
I've only seen 5 digits when the raised access floor installers were drilling/cutting concrete. I offered them respirators. They all turned me down. Nothing like concrete/cinder block drilling in my experience for creating huge amounts of small/awful particles. I wonder how long they will survive?