In this article, we explore:
How humidity impacts the workplace
Indoor air below 40%H in a workplace can impact comfort, health, and productivity.
What causes low humidity
Workplace heating and ventilation systems often reduce moisture levels, especially in winter.
How to control humidity in your office
Maintain 40–60%RH using workplace humidity control and HVAC-based humidification systems.
What Is Evaporative Cooling?
Evaporative cooling is a natural process that lowers air temperature by using water evaporation. As warm air passes over or through water, the water evaporates and absorbs heat from the air, resulting in cooler, more comfortable air being delivered into a space. Unlike traditional air conditioning systems that use refrigerants and compressors, evaporative cooling relies on water and airflow. This makes it an energy-efficient cooling method commonly used in commercial and industrial environments.
How Does Evaporative Cooling Work?
Evaporative cooling works by using the physical principle that water requires energy (heat) to change from liquid to vapor. That energy is drawn from the surrounding air, which reduces air temperature.
- Warm outside or return air is drawn into the system
- Air passes through water-saturated evaporative media or cooling pads
- Water evaporates into the air stream
- Heat energy is absorbed during evaporation
- Cooler air is supplied to the building or process space
The result is a continuous flow of cooler air with significantly lower energy consumption compared to mechanical refrigeration systems.
How do I know if my workplace humidity is too low?
A hygrometer is used for how to measure humidity in office environments and provides a %RH (relative humidity) reading along with temperature.
Monitoring should be done regularly, especially during winter when heating systems significantly reduce indoor humidity levels. Consistently low readings below 40%RH indicate dry indoor conditions and may require action to improve humidity in office environments.
Symptoms of low humidity in the workplace
Maintaining indoor humidity between 40–60%RH supports comfort and wellbeing. When air becomes too dry, the body loses moisture more quickly through skin and respiration, leading to symptoms of low humidity.
Low humidity can also reduce the effectiveness of the body’s natural protective barriers, increasing sensitivity to airborne irritants and contributing to effects of low humidity on employees. Common symptoms include:
- Dry or irritated eyes
- Sore throat or nasal discomfort
- Dry skin and increased sensitivity
- Frequent static electricity shocks
- Reduced concentration or general fatigue
These symptoms are often misattributed to seasonal illness or general poor air quality, when in reality they may be caused by dry air in office environments or broader workplace air quality issues.
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What to Do When Workplace Humidity Is Consistently Low: Causes and Solutions for Improvement
If humidity levels regularly fall below 40%RH, the issue should be escalated internally. This typically involves sharing findings with facilities management, health and safety teams, or HR representatives.
Facilities teams should investigate HVAC systems, which may already include built-in humidification capabilities related to commercial building humidity control systems.
In many cases, systems are inactive, incorrectly configured, or in need of maintenance. It is also common for humidification systems to exist but not be actively used due to energy-saving policies or a lack of monitoring of workplace humidity levels.
Solutions for improving workplace humidity
The appropriate solution depends on building size and complexity.
In smaller offices or individual rooms, localized humidity control can help address dry air conditions in specific zones where signs of dry air in office environment are most noticeable.
For larger commercial environments, integrated humidification systems are required to maintain consistent humidity levels throughout the building and support proper indoor humidity control.
Common technologies include steam humidification, evaporative systems, and fine mist systems. These solutions are used depending on what causes low humidity in offices and the building’s infrastructure. All systems aim to maintain stable indoor humidity within the recommended range of 40–60%RH.
Conclusion
Low humidity in the workplace is a common but often overlooked issue. Because it develops gradually, it can persist unnoticed while still affecting employee comfort and wellbeing. Maintaining ideal relative humidity for office buildings between 40–60%RH is essential for supporting healthy indoor environments. With proper monitoring, awareness, and appropriate humidification strategies, workplaces can correct dry air conditions effectively. When addressed correctly, humidity control improves comfort, concentration, wellbeing, and overall workplace performance.
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