Relative humidity (RH) should be within certain limits for control of the health aspect.
- Bacteri : 20 - 70% RH
- Viruses : 40 - 80% RH
- Fungi : 0 - 70% RH
- Mites : 0 - 60% RH
- Respiratory infections : 40 - 50% RH
- Allergic Rhinitis and Asthma : 40 - 60% RH
- Chemical interactions : 0 - 40% RH
- Ozone production : 75 - 100% RH
- Combined Health Conditions : 40 - 60% RH
In general - relative humidity for human comfort ranges 30 - 60% RH.
Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.
Absolute humidity is the actual mass of water vapor present in the air water vapor mixture.
Age and life expectancy for men and women.
Recommended indoor relative humidity vs. outdoor relative humidity and temperature.
Relative humidity in moist air is the ratio of partial vapor pressure to air pressure.
Recommended relative humidity in production and process environments - like libraries, breweries, storages and more.