You have expressed a common misconception. Relative humidity is the amount of water vapor in air divided by the maximum amount the air can contain at a given temperature, expressed as a percent.

The hygrometer is the instrument that measures relative humidity, the humidity is relative to the air temperature. This can confuse people because if you hold the ACTUAL water vapor constant but heat ...

Buildings require various levels of temperature and humidity controls, but when it comes to preserving historical artifacts or performing an operation, the temperature and humidity levels in a space ...

Atypical approach when designing HVAC systems for operating rooms (ORs) is to go to ASHRAE Standard 170 1 and identify what types of ORs are being designed (e.g., Class B, Class C). One would then ...

Indoor gardening can bring joy and a touch of nature into our homes, but it often comes with a downside: condensation and high humidity levels. If you’ve noticed your windows fogging up or mold ...

It’s a T-shirt kind of day in Washington, DC: 85 degrees with 63 percent humidity. We all know those numbers mean hot, but what exactly does that humidity percentage tell us? And why should we care?