Relative Humidity and Health

Bacteria, viruses, fungi, mites, asthma and range of relative humidity

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Relative humidity (RH) should be within certain limits for controlling health aspect:

Bacteria, 30 - 60% RH
Viruses, 50 - 70% RH
Fungi, less than 70% RH
Mites, less than 70% RH
Respiratory infections, above 40% RH
Asthma, close to 50% RH
Chemical interactions, less than 40% RH
Ozone production, above 75% RH

In general relative humidity for human comfort ranges 30 - 60% RH.

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Related Topics

Physiology Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more

Related Documents

Recommended Relative Humidity in Production and Process Environments Recommended Relative Humidity - RH - in production and process environments like libraries, breweries, storages and more
Absolute Humidity of Air Humidity - or moist - is the water vapor present in air. Commonly used terms are Absolute, Specific and Relative Humidity
Relative Humidity of Air The relative humidity of air can be expressed by partial vapor and air pressure - density of the vapor and air - or by the actual mass of the vapor and air
Outdoor to Indoor Temperature Rise and Relative Humidity The relationship between outdoor and indoor temperature rise - and the effect on the relative humidity

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