mounts in dry environments

[Izzie]

I live in a pretty dry house in CO.
Indoor humidity is 20-30%, maybe up to 40% at night.

Are mounts out of the question for me? Can't have an orchidarium or large terrarium.
The most I can add is a small humidifier at night.

What orchids WOULD do well mounted in these conditions?


For instance, I have a small Den. aggregatum that just does not seem to be happy potted- but of course I've only had it for a little over a month. And have had a devil of a time figuring out how dry/wet it likes to be.