Quote Originally Posted by TheFlyingCamera
. I would venture to say that the room humidity is around 30-35%. I also do not pre-humidify my paper.

Unless you are doing something to intentionally dehumidify, or running forced air heat in the middle of an arctic cold blast, that would be an extremely low RH. My house doesnt even get that low under the latter circumstance, rarely dipping below 40% which still causes me to have dry skin, sore throat, etc. Normal for non-desert mid-latitudes would be closer to 50-60%.