...I'd only suggest pulling the plants out when spikes are visible. The gases in a bathroom may cause bud loss or yellowing of the spike. I've had it happen before in two bathrooms. VERY good place to start initiating spikes, though!
In Pleurothallids, I find that the plants are too susceptible to the gases and will show a steady (if not irreversible) decline in health...
I have no idea what gases they are (besides out the 'other end'), but put a brass coin in there and somewhere else in the house, and see the brass coin tarnish like no other! Sometimes, it may just take a certain day... maybe it's all just a Florida thing?
-Pat
sorry for the noob question but what are spikes? The only spikes i know of are the on the bottom of shoes.
I keep a couple phals in my bathroom because there is no more room in the orchid house. The humidity is still not sufficient to keep high humidity loving plants happy. I really have to water those plants a lot. The air conditioning dries the air more than the 1 or 2 showers a day adds to it. In order for my orchids to love it in there, there would need to be mold growing on every surface (I don't love my orchids that much!)
Well, according to Shakkai, having orchids to stare at in the morning, while brushing her teeth, is getting rave reviews from her dentist & the orchids are happy too. Bathroom orchids are a win/win.
Edited to add: I believe hers are in a tank, protected from any "gases".
I keep quite a few orchids in my bathroom and they seem to really enjoy it. Like everyone has stated before, the showers don't really help the humidity out long term. If you are able to water with your house water it's convenient to have them in your bathroom close to your bath tub.