It gets plenty of air and moisture and the plant is thriving!
Your Miltassia looks outstanding! I've been searching the board here trying to find answers to my plant's problems and came across this thread with your post and pics. I won't be doing the pot in a vase w/water like yours, I'm growing mine on a patio in lots of humidity already but, see now what I need to give it more of to get it back into shape....to maybe, someday have it look as good as yours.