Suggestions for removing strong VOC smell from concrete slab?

invalid@example.com (MasterCarpet), MasterCarpet
Sat, 21 Mar 2026 16:29:54 +0000
Carpet Cleaning

I've got a customer with a large open finished event area. A construction company did some sort of coating removal on the concrete a couple weeks ago. It left a strong solvent type of odor. It's pretty bad. My customer even rinsed it himself with a home carpet cleaner. I don't often use ozone, but I have an ozone machine so I let him borrow it for a few days so he could experiment with it for different durations and see if anything worked. He called me today and said it's still...