Maxillaria chrysantha mounted -- conditions?

[pdxmaven]

I recently purchased a Maxillaria chrysantha, on a mount, from a collector who is leaving town. I know he had it in a greenhouse, which I do not have. I was hoping it would be OK in my bathroom, which has a skylight. But I am worried about the humidity, even with 1-2 showers in there/day.
Would wrapping its roots w/spaghnam moss help or is it one of those that doesn't like its roots wrapped? A humidifier?
How little light can it tolerate, and what temps? thanks, Susan