Very high levels of AST (more than 10 times normal) are usually due to acute hepatitis, sometimes due to a viral infection. With acute hepatitis, AST levels usually stay high for about 1-2 months but can take as long as 3-6 months to return to normal.
MFMA recommends the relative humidity level for a concrete slab for a non-glue-down maple floor system be 85% or lower and for glue down systems the concrete slab relative humidity level should be 75% or lower before installation.
up vote 3 down vote. Recommended humidity levels for human comfort is 30-60%[1]. Plus, in a basement, you want to keep things dry for the sake of the structure. I'd let it run as much as it needs to run. [1] http://en.wikipedia.org/wiki/Thermal_comfort#Relative_humidity.