Relative Humidity Comfort Range

Humidity is a factor in thermal comfort.

Relative humidity comfort range. Human comfort requires the relative humidity to be in the range 25 60 rh. You typically wouldn t want to go above 40 in the wintertime not only for comfort level but also to keep moisture from accumulating on your windows and to prevent problems associated with a relative humidity that is too high. At lower relative humidity rh less than 30 occupants might experience eye irritation or a stuffy nose.

According to the environmental protection agency indoor relative humidity should be kept below 60. What happens if humidity levels are high. High relative humidity reduces people s ability.

This is because at elevated temperatures especially with the sun out our bodies rely on sweating to provide the additional cooling capacity we need to keep our body temperature within its maximum allowable range. At higher relative humidity rh levels more than 60 can encourage the growth of mold and mildew. Very low humidity can create discomfort respiratory problems and aggravate allergies in some individuals.

For humans relative humidity below 25 feels uncomfortable dry. The typical range for the best comfort during the summer as listed in the home humidity levels chart is between 30 45. For some individuals low relative humidity rh may.

Humans can be comfortable within a wide range of humidities depending on the temperature from 30 70 but ideally between 50 and 60. The doh states that for thermal comfort the optimum range for relative humidity is 40 to 60 percent in the summer and 30 to 50 percent in the winter 4. Meanwhile our thermal comfort levels would not differ much whether we were in 10 degree weather with 30 per cent relative humdity or 10 degree weather with 90 per cent relative humidity as we don t need to sweat to get rid of excess heat.

Meaning high or low relative humidity can be uncomfortable. Ideally between 30 and 50.