I think I'm at least 70%. I got a little algae under my inside stuck on bubble wrap last year. It washed off easily with a little dawn and Clorox in h2o. I just use a pot scrubbie with a handle, rinse, squeegee it clean. Since I run fans 24/7 I don't have any plant moisture problems. I usually spray my orchids and ferns daily unless we go for days with no sun. There is usually a small trickle of condensation from the wall in the one corner near the heater, so...
