The relative humidity charts below help you understand how humidity impacts your health, comfort and home. As you can see from the other relative humidity charts, indoor air quality can change how cold or hot we feel and the level of contaminants in the home.
Thermal comfort is the condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation (ANSI/ASHRAE Standard 55). The human body can be viewed as a heat engine where food is the input energy. The human body will generate excess heat into the environment, so the body can continue to operate.
Humidity levels in your home can make a big difference in your level of comfort. Want maximum comfort all year long? Find out the important details here along with the quick-and-easy guide in our home humidity levels chart to stay cool in the summertime, warm in the wintertime, and just right in the seasons in between.
The minimum comfortable level of relative humidity is 20%. Below this, people complaint of dry nose, mouth, eyes, and skin, and there is an increase in respiratory illnesses. Furthermore, static electricity and shrinkage of wood are also problems cause by excessively low humidity. Humidity Comfort
On a pleasant, warm yet comfortable spring day you could have an outside temperature of 72 with a dew point temperature of 55 (which is listed as pleasant in the above chart) you would have a relative humidity of about 55%Although the summer day feels more humid than the spring day its relative humidity is actually lower.
Absolute humidity is “relative” to air temperature. At 75 degrees Fahrenheit & 65% RH there is “no risk for mold”. At a cooler 70 degrees Fahrenheit, a more humid 66% RH is still “no risk for mold”. The dynamic relationship between Temperature and Humidity is why it can be confusing and why people need a chart or app for that.
The most comfortable indoor humidity level will vary from one household to the next, depending on personal preferences. In general, this temperature guide will show you where to keep your indoor relative humidity levels to ensure comfort. Outdoor temperature over 50˚F, indoor humidity levels shouldn’t exceed 50%; Outdoor temperature over 20 ...
So, temperature and humidity are two important factors of comfort. Let's look at all four factors of comfort now: Temperature. How hot or cold is it? Humans like to be in the range of 70 to 80 degrees, more or less. This is the most obvious of the 4 factors of comfort and gets the most attention. Humidity. How much moisture is in the air?
Printable Charts: Temperature to Heat Index. Heat index is a function of air temperature and humidity. We have several ways of expressing atmospheric moisture content, but the two most common are dew-point temperature and relative humidity. Aside from minor rounding errors in the numerical computations, both techniques will yield the same result.
A chart is valid for a given air pressure (or elevation above sea level). From any two independent ones of the six parameters dry bulb temperature, wet bulb temperature, relative humidity, humidity ratio, specific enthalpy, and specific volume, all the others can be determined.