I am a PhD researcher in Bio-Aerosols at the University of Twente, focusing on the behavior, environmental dynamics, and mitigation of airborne biological particles in indoor environments. My research explores how aerosol fluid dynamics, thermodynamic conditions, and ventilation strategies influence airborne infection risk and indoor air quality.
Alongside my academic work, I bring more than 20 years of professional experience in air quality and air treatment technologies. My work bridges scientific research and practical implementation, particularly in the development and application of hygienic ventilation systems and advanced air purification technologies such as UV-C irradiation, filtration, photocatalytic oxidation (PCO), and ozone-based systems.
I collaborate with researchers, engineers, and industry partners to translate scientific insights into real-world solutions for healthcare, food production hygiene, cleanroom environments, and healthy buildings. I am also actively involved in several professional and regulatory organizations, including DIN, VDI, SVLW, ENFIT, and AGLUV, contributing to the development of standards and innovation in clean air technologies.
Fluent in English, Dutch, German, and Aramaic, with working knowledge of French, I bring a multidisciplinary and international perspective to my research. My goal is to advance scientifically grounded clean-air strategies that improve health, safety, and resilience in the built environment.
Expertise
Engineering
- Accident Prevention
- Air Cleaners
- Delivery Rate
- Clean Air
- Flow Rate
- Flow Velocity
- Indoor Space
- Metrics
Organisations
My PhD research investigates the physics of bio-aerosol transport and its implications for airborne infection risk in indoor environments. The work combines aerosol fluid dynamics, thermodynamics, and building ventilation science to better understand how pathogens are emitted, transported, and inactivated in real spaces.
A central objective of the thesis is to critically evaluate existing infection risk models and develop improved frameworks that incorporate environmental effects such as temperature, relative humidity, ventilation, and air distribution. Controlled experiments and field data are used to analyse how ventilation systems and environmental conditions influence aerosol behaviour and infection probability.
The thesis is structured as a series of interconnected papers.
The first paper examines the broader societal impact of aerosols and reviews mitigation strategies for indoor air quality, linking real-world interventions to measurable health and productivity outcomes.
The second paper introduces the Hygienic Air Delivery Rate (HADR), proposing a performance metric for mobile air cleaners that addresses limitations of conventional CADR-based evaluations and avoids misleading safety interpretations.
The third paper investigates how airborne infection control can be reconciled with energy-efficient building operation by combining UV-C pathogen inactivation with optimized air distribution strategies.
The fourth paper develops an EmissionāTransmissionāImmission framework, analysing how thermodynamic conditions influence bio-aerosol dynamics and infection risk using psychrometric relationships represented in the Mollier diagram.
Together, these studies aim to bridge fundamental aerosol physics with practical engineering solutions for infection-resilient buildings.
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