What is the humidity level suppose to be inside a room that is satisfactory for Orchids? I have some Mini Catts on a window sill in bright S.E. exposure. Now I read that humidity trays are useless?? (the humidity tray sellers won't be happy about that! ) The rest of my orchids are outside on my screened lanai.........maybe I should move them out there? I swear the more I learn the more confused I get.......am I the only one?