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
Higher temperatures make higher levels of humidity possible. This is because warm air is capable of holding more moisture than cold air. Warm air has a stronger bond to water molecules, making the air feel drier and allowing more water to bond with air.
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
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.
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 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 a greenhouse can be accurately measured using a sling psychrometer. Other devices include humidity pocket meters, humidity pens, hydrothermograph and humidistat, which measures relative humidity within a 4 percent precision level.
Graphs are beneficial because they summarize and display information in a manner that is easy for most people to comprehend. Graphs are used in many academic disciplines, including math, hard sciences and social sciences. They make appearances in corporate settings, serving as useful tools to convey
Normal humidity within a home should typically stay between 35 and 45 percent, depending on local temperature and climate. Various methods exist that help to either bring it down or up as needed.
Most homes should maintain a relative humidity below 50 percent at all times. This prevents mold and mildew growth, dust mite infestations, and condensation from building up in your home.