Woah lots of humidity issues here, humidity is a big factor in keeping chameleons hydrated, it might be difficult to keep your entire enclosure at 70% humidity so provide a pocket of dense foliage that your chameleon can access with high humidity, I personally wrap my reptibreeze in 3m clear plastic in the winter on 4 sides only leaving the very bottom and top screen open for ventilation, I run a mistking several times a day along with a cool mist humidifier, together they make a fog that helps keep the humidity at a nice level, but I do allow my cage and Cham to dry out several times a day, it helps keep mold and respiratory issues at bay. I make sure I hand water my chams and watch them drink from a spray bottle to make sure they stay hydrated. Humidity is definitely one of the biggest hurdles when it comes to keeping chams.good luck! Btw keep that humidifier clean.