The mix works good to nip the mold already in, but a great efficiency way to run higher humidity and keep the mold curbed is a high UV air scrubber. It kills the mold in the air as well as other bacteria that can cause smells and such. The guy making those Growbars in your grow is also the guy that found the one I use. Ask him where he got it and I am sure he would help. It just plugs into a wall socket and cycles the air covering not only the grow area, but the entire room its in. As long as I have run this thing running the mold has never come back and the room smells fresh at the same time no matter where my humidity is. High Tech makes it easier in this case.
Bob