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Sick Building Syndrome Surges as Winter Ventilation Drops
12 Nov
Summary
- Sick building syndrome cases rise in colder months due to reduced ventilation
- Poor indoor air quality lowers productivity and can aggravate chronic conditions
- Employers advised to improve HVAC maintenance, use low-VOC products, and encourage flexible work
According to a recent report, the onset of colder weather is bringing a familiar set of complaints for many office workers, including headaches, itchy eyes, and difficulty concentrating. These symptoms, collectively known as "sick building syndrome" (SBS), are becoming more prevalent as winter approaches.
The primary drivers of this seasonal spike in SBS are reduced ventilation, low humidity, and HVAC system issues. As people keep windows shut to stay warm, many buildings rely on recirculated indoor air, concentrating pollutants like carbon dioxide, volatile organic compounds, and bio-aerosols. The dry air caused by heating and recirculation can also irritate mucous membranes, impairing the body's defenses against viruses and bacteria.
Poorly maintained HVAC systems can further exacerbate the problem, releasing mold spores, endotoxins, and other irritants into occupied spaces. The increased use of cleaning products and disinfectants during the winter months can also contribute to the buildup of volatile organic compounds, leading to headaches and other symptoms.
Experts recommend that employers and facility managers take proactive steps to address these issues, such as increasing fresh-air ventilation, maintaining HVAC systems, monitoring indoor air quality, and using safer cleaning products. Encouraging flexible work arrangements during high-risk periods can also help reduce occupant density and exposure. By prioritizing indoor environmental quality, employers can improve worker well-being, productivity, and attendance.
