I had to evacuate my apartment because of the carbon monoxide that was blown into my apartment by Silver Olas Carpet Tile Flood Cleaning. They used their car to connect the tubes for the cleaning, and the carbon monoxide in my apartment went up to sixty ppm. Everything else that could have caused this problem was ruled out. I'm positive it came from Silver Olas Carpet Tile Flood Cleaning. It was scary for me because carbon monoxide levels that high are dangerous.