The heat index, or apparent temperature, combines air temperature and humidity to indicate how hot it feels to the body. High humidity slows sweating, the body's natural cooling system, making ...

We’ve all heard someone say, ‘It’s not the heat, it’s the humidity.’ Many of us have also seen the heat index on a hot and humid summer day, but what about a wet bulb temperature? Several scales ...

Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process. They found it was ...

We know proper indoor ventilation is key to reducing the spread of Covid-19. Now, a study by MIT researchers finds that indoor relative humidity may also influence transmission of the virus. Relative ...