Re: Humidity control
@Gordon Pyra - interesting to hear you say that about how firms look after their kit. My first proper job was as a mainframe operator for SERC nearly 40 years ago now - the computer room had aircon (indeed, me and my team leader used sign language to communicate from one end of the compuer room to the other, the aircon was so noisy). Following that, I worked for Fedex on their mainframes - also in an airconditioned room. Twent years ago, and I was working for the local council, NOT in IT , but their equipment was in an air-conditioned room.
My impression has been that all companies keep their IT gear nice and cool, even if they don't care if their staff fry!