Fraunhofer IAO, Stuttgart - Germany

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Industries

Humidity control in office environments

Products

DRAABE NanoFog , DRAABE PerPur, DRAABE HighPur, DRAABE SynPur, DRAABE HumCenter, DRAABE HumSpot, DRAABE PurControl

Fraunhofer IAO Stuttgart investigates humidity and health

The investigations were carried out at the Fraunhofer IAO's Centre for Virtual Engineering (ZVE) in Stuttgart (picture above) and were additionally supported by an internet-based survey in cooperation with the Facility Management degree program at HTW Berlin.

Optimal production process

For the study, three DRAABE NanoFog Evolution direct room humidifiers were used in a section of the ZVE to ensure a constant minimum air humidity of around 40% relative humidity. The survey of office users took place over several months, during which the humidifiers were switched on and off periodically. The survey results were compared with other areas of the building where no additional humidification was used. Low humidity is disruptive When asked about their perception of humidity, there were significant differences in the assessment of the different scenarios: with active humidification, the humidity was never perceived as too low. When humidification is not active or not available, over 40% of office users feel disturbed by excessively dry air. On average, the difference between humidified and non-humidified office spaces was around 16% relative humidity. Increasing the humidity results in a positive feeling among office users and greater satisfaction with the working environment. Over 50% of respondents also rate the indoor climate as very refreshing.

Dried-out mucous membranes

The mucous membranes of the respiratory tract perform an important protective and self-cleaning function. The viscosity of the mucous membranes is a decisive factor in how quickly pathogens are transported out of the body. The faster this happens, the lower the risk of illness. Clinical studies show that a sufficiently high humidity of at least 30% is necessary for rapid clearance of the airways. The results of the study confirm the influence of dry air on the mucous membranes: 54% of employees in offices without air humidification agree with the statement that they often have dry airways at work. In workplaces with air humidification, complaints of dry airways are reduced by more than a third to 35%.

"Our research has shown that the additional use of air humidification systems has a positive effect on the assessment of the workplace and can also have an impact on the health and performance of office workers."

Condair in action

Projects and references

Albrecht Dürer Airport, Nürnberg (Germany)

Since 2019, direct room air humidification in the area of the security control area of Nuremberg Airport has ensured a consistently optimal humidity of 40 percent. The system, which is used in addition to duct humidification, protects employees and departing passengers from electrostatic discharges and at the same time makes a valuable contribution to greater well-being and health.

Amundi Deutschland GmbH, München (Germany)

Amundi Germany is an expert in making the right investments. At its Munich office, the investment company manages assets of 52 billion euros and employs a total of 150 people. "The feel-good factor plays a very important role in the optimal working conditions of our employees," says Klaus Mutzl, Head of Operations Munich.

AOE GmbH, Wiesbaden (Germany)

Shortly before the start of the Covid-19 pandemic, the software service provider AOE decided to use additional air humidification. Since then, the company has not only been convinced of the positive effect of optimal air humidity, but also sees health protection as an independent corporate value. Hybrid models of presence and remote work will pose new challenges for AOE in terms of workplace design in the future.

Das Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO, Stuttgart (Germany)

In a 2-year study, the Fraunhofer Institute for Industrial Engineering IAO investigated the significance and effect of humidity in the office. The results show that humidity has a positive effect on the assessment of the workplace and can also have an effect on the health and performance of office workers.

Hannover Rück, Hannover (Germany)

Hannover Re is the world's third-largest reinsurer. The IT Service Desk looks after over 3000 employees at the Hanover location on all questions relating to the software and hardware of the workstations.

JURA Kommunikations-Center, Nürnberg (Germany)

JURA Elektrogeräte Vertriebs-GmbH has been located in Nuremberg since 1987. 362 days a year, 30 employees are available in shifts for end customers and specialist dealers and advise and support them on all questions about fully automatic Jura machines and accessories.

Laverana GmbH&Co. KG, Hannover (Germany)

In the converted Laverana headquarters of the natural cosmetics manufacturer, it is shown how optimal air humidity and the natural materials used in the building can ensure a very special feel-good climate.

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