Recommended Relative Humidity
Relative humidity above 70% (and even lower at special conditions) may for normal living conditions cause condensation on cold surfaces - causing mold, corrosion and moisture related deterioration.
Too low relative humidity may cause problems with static electricity, cracking of paint and shrinkage of wood furniture and wood floors.
For humans relative humidity below 25% feels uncomfortable dry. Relative humidity above 60% feels uncomfortable wet. Human comfort requires the relative humidity to be in the range 25 - 60% RH.
Related Topics
• Physiology
Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.
Related Documents
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Absolute humidity is the actual mass of water vapor present in the air water vapor mixture.
Air - Humidity Ratio
The mass of water vapor present in moist air - to the mass of dry air.
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Clo - Clothing and Thermal Insulation
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Human Body - Specific Heat
Specific heat of the human body - compared to substances like protein and wood.
Human Need of Air
Fresh air is required for respiration and for transport of heat and vapor emitted from the human body.
Indoor Relative Humidity vs. Outdoor Relative Humidity and Temperature
Recommended indoor relative humidity vs. outdoor relative humidity and temperature.
Moist Air - Specific vs. Relative Humidity
Specific humidity of moist air vs. relative humidity, water vapor and air density.
pH in Human Biological Material
pH in human materials like blood, salvia and more.
Saturated Salt Solutions - Controlling Air Humidity
A salt solutions can be used maintain a particular value of relative humidity.