Humidity Control for Call Centres

Q: How does humidity control benefit employee health and productivity?

Controlled humidity reduces strain on the voice, respiratory infections, eye irritation and dry skin, thereby reducing absenteeism and illness in call centres. At the same time, optimal humidity and a fresher indoor climate increase employee performance and satisfaction.

Q: What is the ideal humidity for call centres, service centres and offices?

A relative humidity between 40 and 60% protects the health of employees, increases comfort and satisfaction, and minimises the risk of electrostatic discharge and damage to IT and electronic equipment.

Q: Can low humidity damage servers, IT equipment and headsets?

Yes. Low humidity increases the risk of electrostatic discharge (ESD), which can damage sensitive components in headsets, servers and IT systems. Humidity between 40 and 60% RH protects equipment, prevents costly downtime and ensures reliable and safe operation.

Q: What types of humidification systems are suitable for call centres and service centres?

Suitable options are direct-room and in-duct humidification systems with precise controls. The best choice depends on the size of the building, the number of rooms to be humidified, the air flow, the existing ventilation system and the retrofitting requirements.

Q: How is humidity reliably measured and monitored in call centres?

The required relative humidity is reliably controlled by sensors (hygrometers), automatic humidifier control, routine maintenance (cleaning, calibration) and integration into building management systems (BMS).

Q: Can humidity control protect sensitive electronic equipment from damage?

Yes — balanced humidity prevents electrostatic discharge (ESD) that can fry components, and prevents corrosion and short circuits caused by excess moisture.

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Benefits

Controlled humidity in call centres protects health, reduces absenteeism and fatigue, and reduces voice problems. At the same time, sensitive IT equipment and electronics are protected from electrostatic discharge.

Less respiratory infections

Additional air humidification reduces the spread of viruses and boosts the immune system.

Prevent voice problems

A minimum humidity of 40% protects the vocal apparatus from strain and improves the quality of conversation.

Refreshing indoor climate

Evaporative cooling of air creates a revitalising and refreshing indoor climate.

Humidity control for call centres

Top of page Benefits Product details Use cases References Testimonials FAQs

Air humidification for better health and performance

In call and service centres, the voice is the most important tool. High call quality and successful customer dialogue depend on a natural voice. Additional air humidification lays the foundation for a healthy working environment. Controlled air humidity protects against voice strain, reduces the spread of viruses and boosts the immune system. Studies show that optimal air humidity reduces the survival rate of viruses by a factor of 3. It also protects the tear film of the eyes and prevents inflammation, infection and irritation. At the same time, concentration and performance are improved: revitalising air humidity increases well-being, which has a positive effect on employee motivation and productivity. In voice-intensive working environments such as call centres, air humidification is therefore a decisive factor for health and performance.

Natural cooling for greater comfort

Evaporative cooling uses the evaporation of fine aerosols from additional air humidification to lower the temperature and create a pleasant, refreshing indoor climate. Thermal comfort is particularly important in call and service centres, where employees work intensively and talk for hours on end. Workplaces that are too warm can severely impair performance and reduce concentration. Evaporative cooling counteracts this by lowering the air temperature and simultaneously increasing the humidity – a benefit for the voice and respiratory tract. Unlike conventional cooling systems, the principle of evaporative cooling is energy-efficient and environmentally friendly. It creates a fresh, natural indoor atmosphere that increases well-being and promotes productivity.

Prevent damage to sensitive equipment

Maintaining optimal humidity in call centres is not only important for employee comfort and health but also crucial to protect sensitive electronic equipment. Low humidity can lead to electrostatic discharges that damage headsets, servers, and other technical devices, while excessive humidity increases the risk of corrosion and malfunction. By keeping the air humidity at the right balance, call centres ensure stable operation of their critical IT and telecommunication systems. This creates a safer environment for both people and technology, reducing costly downtime and equipment replacement. At the same time, controlled humidity improves voice clarity and employee well-being, leading to healthier staff and higher service quality. Investing in humidity control therefore safeguards valuable equipment, prolongs its lifespan, and ensures reliable and efficient operations in the call centre.

The vocal apparatus

Voice production takes place in the larynx, which contains the vocal folds and vocal cords surrounded by a mucous membrane.

The respiratory tract

A relative humidity of between 40 and 60% protects the respiratory tract from infections caused by viruses and other pathogens. This allows the self-cleaning function of the mucous membranes to work optimally.

The vocal folds

If the air is too dry, the vocal folds lose their optimal moisture and elasticity. The glottis no longer closes completely. Side air enters the vocal apparatus. Voice problems arise.

The glottis

When the air is too dry, the glottis is no longer completely closed by the vocal folds. The intrusion of secondary air causes coughing, throat clearing and voice problems.

The vocal cords

The vocal cords require optimal humidity to enable the voice to function healthily and produce a clear sound.

Use cases

In call centres, optimum humidity protects against voice problems and respiratory infections, strengthens the immune system and ensures a refreshing indoor climate thanks to evaporative cooling.

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Projects and references

JURA Kommunikations-Center, Nürnberg (Germany)

To protect against respiratory diseases and voice disorders, the Jura Customer Communication Centre uses in- room humidification systems.

Thomann GmbH, Treppendorf (Germany)

In-room humidification is an integral part of air conditioning: for guitars, trumpets, customers and employees. At Thomann Musikhaus, controlled humidity guarantees protection, atmosphere and health.

Kaffee Partner GmbH, Osnabrück

Save the Children

Save the Children Canada is a member of Save the Children International, a network of 30 member organizations that operate programs and raise funds both domestically and internationally. The members of this network join together as a federation to pool resources, establish common positions on issues and strengthen our capacities to carry out life-saving and sustainable projects.

Quotes from our customers

Amundi Deutschland GmbH, München (Germany)Ulrike SailerSenior Office Manager

"When you are responsible for employees, the importance of air humidification should not be underestimated."

HCD Human CallCenterDesignMichael StüveOwener and General Manager

"Air humidification protects health and boosts performance in call centres."

Jungheinrich Service&Parts AG&Co. KG, Kaltenkirchen (Germany)Jens RingelingGroup Leader Facility Management

"Our additional in-space humidification is a great fit, as the positive effect is immediately noticeable and has a direct impact on employee satisfaction and health protection."

JURA Kommunikations-Center, Nürnberg (Germany)Thomas FechnerAssistant to the Executive Board

"Hygiene and safety are of course particularly important to us with such a system. The DRAABE systems can guarantee us the safety we want and the discreet design of the nebulisers integrates perfectly into the room."

Leoni Bordnetz-Systeme GmbH, Kitzingen (Germany)Heike LovvornAssistent VP

"The climate in the office is pleasantly fresh. Our team now feels much more comfortable thanks to DRAABE air humidification."

Thomann GmbH, Treppendorf (Germany)Eddie IsaakjanSales Manager

"There was immediate positive feedback. For most colleagues, the air now feels noticeably fresher, windows are opened less and the complaints about eye and voice strain are gone."