Maintaining an indoor relative humidity of approximately 45 percent is the ideal level for the summer months or warmer climates. Colder climates or the winter months require even lower levels, approximately 30 to 40 perc... More »

The ideal humidity range for the inside of a building is between 30 percent and 60 percent, depending on the temperature and time of year. Humidity outside the recommended ranges causes discomfort, property damage and he... More »

A relative humidity of 30 to 50 percent provides the most comfort for indoor air. Too little or too much humidity can cause problems with the health of the home's occupants and can cause structural problems in the home. More »

People are most comfortable whenever the relative humidity level is around 45 percent says HowStuffWorks. A level of 100 percent humidity means that the air is saturated with water vapor and unable to hold more. When thi... More »

Humidity can be set on a humidifier to anything between 30 percent and 50 percent, with a level between 45 percent and 50 percent considered ideal. When humidity is over 50 percent, bacteria and mold can accumulate. When... More »

To maintain the correct humidity level in a basement, place a dehumidifier in the basement, and connect it to the existing main stack, feeder drain or utility sink. If the dehumidifier doesn't measure the level of humidi... More »

A dehumidifier with a built-in humidistat is generally set at a relative humidity level between 30 and 50 percent. If winters are cold and heating systems are needed, a level between 30 and 40 percent keeps windows from ... More »