What percent humidity should my server room be set at?

[captaincrunch00]

Hi there,

I've got a computer room that another employee refuses to change from 50-55% humidity. Walking into the room where my servers are is like getting hit in the face with a wet towel, or walking into a rainforest.

Does anyone have any articles, or any reason why it should be that high? Shouldnt it be at 40% so there is no static and there is no dampness in the air? Hell, if I do work in there my shirt sticks to me because it's so wet.

His argument (and only argument) is "I've been keeping computer rooms at 50% humidity since 1962!" and he refuses to change.
I'm looking for some articles that can help me make him see the light, it's not 1962 anymore, the technology has evolved a bit.

 

[58sniper]

I use 40-45%, but have worked in rooms higher than 70%.

But just as important is the temp.

Pat Richard, MCSE(2) MCSA:Messaging, CNA(2)

 

[captaincrunch00]

The temp is set at 65-70 degrees farenheit depending on if someone forgets to close the door.

It changes slightly depending on the temperature outside the building.

Any reason to use 40-45%? Any articles that say "Dont use 50% because it's uncomfortable and bad"?