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Investigating the effects of ambient light on the feeling of thermal comfort, mental performance, and comfort of nurses in healthcare environments
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Karen Fatahi   |
| Azad University of Ilam |
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Abstract: (12 Views) |
Introduction: The aim of the present study is to investigate the effects of ambient light on the sense of comfort, mental performance, and thermal adaptation of nurses in healthcare environments.
Methods: This experimental study was conducted with the participation of 60 healthy female nurses in Ilam city during four months (December to March 2014). The present study evaluated the interaction effect of two lighting parameters including light intensity (300 and 750 lux) and light color temperature (2700, 4000 and 7800 Kelvin) on the feeling of thermal comfort of nursing staff in medical spaces. Statistical analysis of data was performed using multivariate analysis of covariance (MANCOVA) in SPSS27 software environment.
Results: The results of statistical analysis showed that all three factors, ambient light intensity (p<0.05, F=11.799), correlated light color temperature (p<0.05, F=91.045), and cognitive performance of nurses (p<0.05, F=6.783), had a significant effect on their sense of comfort and thermal adaptation. Also, the interaction between light intensity and color temperature only affected thermal comfort (p<0.05), but had no significant effect on thermal adaptation (p>0.05). These findings confirm the research hypothesis that light variables affect nurses' thermal well-being.
Conclusion: The results showed that the combination of warm light with medium intensity (2700 Kelvin and 300 lux) created the best conditions for thermal comfort and cognitive performance for nurses, while cold light with high intensity (7800 Kelvin and 750 lux) caused discomfort. These results indicate the need for integrated design of lighting and ventilation systems in healthcare facilities.
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Article number: 2 |
| Keywords: Ambient light, comfort, mental performance, thermal adaptation, nurses. |
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Full-Text [PDF 239 kb]
(19 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2025/05/20 | Accepted: 2025/08/9 | Published: 2025/10/10
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