Relative humidity is defined as the amount of atmospheric moisture present, divided by the amount of moisture that would be present if the air were completely saturated. This ratio is typically expressed as a percentage. Since the amount of moisture the atmosphere can hold is dependent on temperatur
High humidity is generally regarded as the dew point temperature being at or only a few degrees below the measured air temperature. Dew point is the temperature at which water vapor condenses on surfaces, such as when morning dew condenses on grass.
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 this happens, perspiration cannot evaporate into the air, making people feel hotter
Humidity in a home causes discomfort for occupants. If the levels are too high, the moisture encourages the growth of mold. Keeping humidity in the recommended 30 to 60 percent range requires a multi-step approach that includes venting, using HVAC systems and a dehumidifier.
Relative humidity inside the home increases as the actual temperature comes closer to the dew point temperature. The dew point temperature is the temperature at which the air cannot hold all the moisture in it and some of it condenses into liquid.
Humidity can be measured by using a hygrometer. Types of hygrometers include the basic psychrometer, an electrical impedance hygrometer useful for remote locations, the condensation principle hygrometer and mechanical hygrometers.
There are different tools available to help measure humidity, including a hygrometer, a hygrograph and a sling psychrometer. Each separate tool that measures humidity does so on a different scale.
Humidity levels inside a home should not exceed 30 percent in the winter or 55 percent in the summer, according to Home Energy Resource MN. The company provides a specific chart for different temperature levels.
People manage home humidity levels in several ways, including properly ventilating clothes dryers and washers outside, running fans to have air continually circulating, operating whole-house dehumidifiers and keeping air conditioning units properly cleaned and functional. Some people select housepla
Using a humidifier, boiling water, adding water sources and hanging clothes to dry are some ways to increase a room's humidity. Humidifiers range in size and capability. Some are made for distributing moisture throughout an entire house, while others are made just for one room. Humidity increases in