2018
DOI: 10.1111/ina.12495
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Microbiological air quality in office buildings equipped with dventilation systems

Abstract: Proper hygienic conditions in office buildings are of a high importance for both health and well-being of the employees. The aim of this study was the direct comparison of different ventilation systems on microbiological environments in 15 office buildings. The results showed that both bacterial and fungal concentrations in the naturally ventilated office buildings were between 70 and 1600 cfu/m , while in the offices equipped with air-conditioning and mechanical ventilation systems, concentrations were lower,… Show more

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Cited by 44 publications
(23 citation statements)
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“…Thus, an intervention aiming at air cleaning with ultraviolet germicidal irradiation, such as ultraviolet with wavelength between 200 nm and 280 nm (UVC) [30] should be ensured, covering both fungi and bacteria elimination in the Clinical Pathology Service. Additionally, HVAC systems (including ventilation grids) should be maintained and properly preserved, since their efficacy in reducing microbial contamination has already been demonstrated [52,53].…”
Section: Discussionmentioning
confidence: 99%
“…Thus, an intervention aiming at air cleaning with ultraviolet germicidal irradiation, such as ultraviolet with wavelength between 200 nm and 280 nm (UVC) [30] should be ensured, covering both fungi and bacteria elimination in the Clinical Pathology Service. Additionally, HVAC systems (including ventilation grids) should be maintained and properly preserved, since their efficacy in reducing microbial contamination has already been demonstrated [52,53].…”
Section: Discussionmentioning
confidence: 99%
“…In buildings equipped with centralized ventilation systems there is a reduction of microbial contamination compared to the outside when air filtration and treatment systems are maintained in appropriate conditions [22]. The air inside buildings may be contaminated by the growth of microorganisms on floors, walls, aeraulic plants or because of inadequate air changes [23]. The ventilation systems can have very different structural characteristics, ranging from the simple aspiration of exhaust air to integrated heating, cooling, and humidification.…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, limited studies were carried out on the microbial community in HEPA filter in an air purifier, while most focused on microbes in HVAC filter 24,[27][28][29][30][31] . Knowledge of microbes in HEPA filter in office was also lacked, except the concentration and the size distribution of microbes 32 . Settled dust (SD), which well reflects the microbial composition in indoor air [33][34][35] , was commonly used to explore the indoor microbial community 36 .…”
mentioning
confidence: 99%