Ideal Relative Humidity for Server Rooms
The ideal relative humidity for server rooms & data centers is generally between 40% to 55%.
What happens if humidity is too high?
High humidity (above 60%) in a server room can cause condensation to form directly on motherboards, hard drives, and power supplies, leading to catastrophic short circuits and hardware failure.
What happens if humidity is too low?
Low humidity (below 40%) drastically increases the risk of Electrostatic Discharge (ESD). A simple static shock that wouldn't harm a human can instantly destroy sensitive server components and microchips.
Frequently Asked Questions
- Why do data centers care about dew point?
- Dew point is often a more reliable metric than relative humidity for data centers because it dictates the exact temperature at which condensation will form on the equipment.
- How is server room humidity controlled?
- Data centers use specialized precision cooling systems (CRAC or CRAH units) that manage both the temperature and the moisture content of the air simultaneously.