Your post provides some great tips for using air conditioning with electronic equipment. Managing humidity and airflow is key to ensuring the equipment's longevity. It's fascinating to see how the setup and type of AC system can make such a difference.
Moisture can do a lot of damage to mining equipment, but from my experience and I can say that video cards work very well in wet areas. The danger is caused by the ingress of liquid on video cards and electronic components.I've been mining in a garage for many years, and the garage is always humid in the winter. In the spring, check the roof for leaks, because 1 drop of water can cause a lot of damage.