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Bluyssen, P.M. (author), Zhang, D. (author), Ortiz, Marco A. (author)Recent studies have shown that both personal and building-related factors may affect the health and comfort of occupants in their homes. It is also known that people differ in their needs and can therefore respond differently to these stressors. Therefore, based on the large database from the survey conducted yearly from 2016 to 2020 among the...journal article 2023
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Hamida, A.B. (author), Zhang, D. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)Sounds (e.g., human activity, nature, building systems) are one of the indoor environmental stimuli that may have positive and/or negative effects on students’ well-being and performance in educational buildings. Students in educational buildings have individual acoustical preferences and needs as portrayed by occupant-related indicators, for...journal article 2023
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Ortiz, Marco A. (author), Bluyssen, P.M. (author)Building retrofitted to be resilient in the face of future climates may present risks for the health and comfort of the occupants, due to the indoor environmental quality changes involved under current building practices. This chapter is a literature review of recent peer-reviewed papers from a variety of fields identifying such potential...book chapter 2022
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Hamida, A.B. (author), Zhang, D. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)During the COVID-19 outbreak, university courses were shifted online and students spent the majority of their time inside their homes. However, staying indoors can affect students’ health due to the exposure to several environmental stressors, such as background noise, and/or inefficient ventilation, and/or insufficient lighting. Previous...conference paper 2022
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Ortiz, Marco A. (author), Bluyssen, P.M. (author)The worldwide spread of the Coronavirus disease 2019 forced governments to enact different measures to mitigate the infections. Employers and workers had to adjust by shifting a substantial number of jobs to a “work from home” configuration (WFH). On average, people used to spend around 90% of their time indoors, however, this number may have...conference paper 2022
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Liu, Y.L. (author), Ortiz, Marco A. (author), Zhang, D. (author), Bluyssen, P.M. (author)The airborne transmission of SARS-CoV-2 in educational buildings has raised concerns during the current COVID-19 pandemic. In this study, a portable fog generator system was designed and assembled to visualise the airflow pattern of exhaled droplets in a classroom. The system consists of five components: medium, fog generator, buffer, pump, and...conference paper 2022
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de Man, Peter (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author), de Man, Stijn J. (author), Rentmeester, Marie-Jozé (author), van der Vliet, Marijke (author), Wils, Evert-Jan (author), Ong, David S.Y. (author)Background: The initial aim was to study the effects of face masks worn by recently infected individuals on the airborne spread of SARS-CoV-2, but findings motivated us to proceed with comparing the presence of SARS-CoV-2 in air samples near infected individuals at home with those near infected intensive care unit (ICU) patients. Aim: To...journal article 2022
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Zhang, D. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)Because of COVID-19, the indoor environmental quality (IEQ) in sports facilities has been a concern to environmental health practitioners. To develop an overall understanding of the available guidelines and standards and studies performed on IEQ in sports facilities, an extensive literature study was conducted, with the aim of identifying: (1)...journal article 2022
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Ortiz, Marco A. (author), Bluyssen, P.M. (author)Due to the COVID-19 pandemic, a large number of office workers were required to conduct their work from home. Little is known about the indoor environmental quality (IEQ) preferences and psychosocial comfort preferences of staff working from home. Therefore this study aimed to cluster office workers working at home based on their self-reported...journal article 2022
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Ghasemieshkaftaki, M. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)3D-printing has transformed traditional manufacturing by enabling the fabrication of individually designed complex systems. The building’s façade is one of the most challenging systems because it affects the control of the built indoor environment and allows to provide energy-saving.<br/>The objective of this research is to distinguish 3D...conference paper 2021
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Ortiz, Marco A. (author), Bluyssen, P.M. (author)Due to the SARS-CoV-2 pandemic, several strategies have been proposed to reduce its transmission, from social distancing, regularly disinfecting items and hands, and wearing barrier masks. Guidelines and standardization propose certain tests for the filtration of the masks, or visual inspections to check the materials. However, no standards...conference paper 2021
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Bluyssen, P.M. (author), Ortiz, Marco A. (author), Zhang, D. (author)High efficiency air filtration has been suggested to reduce airborne transmission of ‘infectious’ aerosols. In this study the ‘air cleaning’ effect as well as the effect on sound and air velocity (draught risk) of a mobile High-Efficiency Particulate Air (HEPA) filter system was tested for different settings and positions in the Experience room...journal article 2021
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Bluyssen, P.M. (author), Zhang, D. (author), Ortiz, Marco A. (author)Next to personal, psychosocial and physiological aspects, environmental aspects of homes may affect the health and comfort of their occupants. This study aimed to investigate the multifactorial character of both rhinitis and headaches among five groups of students from universities in five different cities: Taichung (Taiwan), Concepcion (Chile),...journal article 2021
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Eijkelenboom, A.M. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)Building-related health symptoms are multifactorial, hence a comprehensive study is needed to identify associations of such symptoms with building aspects. Previous studies have identified certain building characteristics as risk factors for both dry eyes and headaches, which are among the most prevalent symptoms suffered by office workers....journal article 2021
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Eijkelenboom, A.M. (author), Ortiz, Marco A. (author), Bluyssen, P.M. (author)While the pressure on hospital workers keeps growing, they are generally more dissatisfied with their comfort than other occupants in hospitals or offices. To better understand the comfort of outpatient workers in hospitals, clusters for preferences and perceptions of the indoor environmental quality (IEQ) and social comfort were identified in a...journal article 2021
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Ortiz, Marco A. (author), Ghasemieshkaftaki, M. (author), Bluyssen, P.M. (author)Since the outbreak of COVID-19, wearing a mask, voluntary or obligatory, has led to diverse and numerous designs. Guidelines for minimum requirements include tests for visual inspection, strength, filtration, and breathing resistance, but not for the fit of a mask. The fit of a mask was assessed by testing the outward leakage of exhaled...journal article 2021
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Ortiz, Marco A. (author), Kim, D.H. (author), Bluyssen, P.M. (author)A previous study clustered home occupants into archetypes with a questionnaire. This study uses qualitative methods to strengthen those previously-found archetypes with data pertaining to the participants’ home experiences. Focus groups were carried out where generative activities were conducted involving the generation of collages. The first...journal article 2020
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Ortiz, Marco A. (author), Itard, L.C.M. (author), Bluyssen, P.M. (author)There are indications that energy-retrofitted buildings can create risks for indoor environmental quality (IEQ) and therefore for health and comfort of occupants. A review was conducted to identify and verify those risks, within three themes: building envelope, heating, ventilating and air conditioning (HVAC)-systems, and occupants. Publications...journal article 2020
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Bluyssen, P.M. (author), Kim, D.H. (author), Eijkelenboom, A.M. (author), Ortiz, Marco A. (author)To identify current problems in the classroom and to conceptualize design solutions by primary school children to solve these problems, 335 children from seven primary schools participated in a workshop held in the Experience room of the SenseLab, comprising of two parts. In part 1, the children were asked to think about their own classroom...journal article 2020
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Ortiz, Marco A. (author)This research is aimed at better understanding how occupants use energy in<br/>their homes from a comfort-driven perspective, in order to propose customized<br/>environmental characteristics that could improve the occupants’ comfort while<br/>reducing energy consumption.doctoral thesis 2019
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