My vivarium

[getyaya]

I was planning to buid a vivarium to grow cool species like draculas, Masdevallias and some more genera.
After a long time searching for information, I built the vivarium.
It measures 1.2 m high x 0.70 m long x 1m wide. I installed a rain system and two fans running 24/7.
I have an extractor but it´s not working yet. is necessary extract or inject air in a cool vivarium?
Also I´m going to install a nebulizer.
Still missing things, but I've had a small white mold problem.
Clean with Physan but I can not completely eradicate the problem.
Has anyone had the problem and can give me any advice?

imgur.com/PMMXgMx