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World Humidity Control Day Launches

World Humidity Control Day Launches
12 March 2024

An awareness day to promote the impact of humidity control in our daily lives and the buildings we live and work in has launched. 

The Humidity Control Group, a group within the HEVAC trade association and part of the Federation of Environmental Trade Associations has named 12 March 2024 as the first World Humidity Control Day.

The group aims to raise awareness that controlled humidification enhances occupant health and comfort, improves manufacturing processes, and helps preserve building materials and furnishings.

High humidity levels can make the air feel heavy and uncomfortable, causing excessive sweating. Low humidity levels can cause dryness in the air, which can lead to dry skin and irritation of the eyes and throat. Changes in humidity and temperature can also trigger symptoms in people suffering from respiratory conditions such as COPD and asthma.

The group recommends keeping Relative Humidity levels within a range of 40 to 60 per cent to decrease bacteria and viruses in the air and hinder the development of fungi, mites, chemical interactions, and ozone production. 

CIBSE Guide A cites a comfort range of 40-70 per cent Relative Humidity, stating that effects from higher humidities can be reduced by air movement from ceiling or desk fans.


John Frederick Daniell


John Barker, Chair of the Humidity Control Group, commented: “World Humidity Control Day gives us the perfect platform to raise the profile of humidity control whilst recognising the achievements of John Frederick Daniell.”

John Frederick Daniell was an English chemist and physicist who, in 1820, invented a dew-point hygrometer to measure atmospheric humidity.

John continued: “By improving education and awareness we can better promote the many benefits of maintaining optimum humidity levels in the buildings we live and work in.”

Picture: a photograph of a window showing condensation droplets. Image Credit: Pexels

Article written by Ella Tansley | Published 12 March 2024


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