SANS Global Industrial Cyber Security Professional (GICSP) Practice Test 2025 - Free GICSP Practice Questions and Study Guide

The recommended relative humidity for computer rooms is in the range of 40% to 60%. This level of humidity is ideal because it helps to prevent both static electricity buildup and the potential for moisture damage to sensitive electronic equipment.

At lower humidity levels, such as below 30%, there is an increased risk of static electricity, which can lead to electrostatic discharge (ESD) that damages computer components. Conversely, higher humidity environments, particularly above 70%, can lead to condensation, promoting corrosion and mold growth that can degrade equipment performance and reliability.

Maintaining a relative humidity within the 40% to 60% range is crucial for the operational efficiency of servers, network equipment, and other electronics in computer rooms, ensuring they function optimally and have a longer lifespan. This balance not only protects the hardware but also contributes to the overall effectiveness of the cooling systems employed in such environments.