One of Australia’s most experienced air quality experts

Brad Prezant

Principal Consultant

MSPH, MBA, COH, CIH, CAQP, WELL AP/Assessor/Advisory Board

Certified Occupational Hygienist

Brad Prezant is a public health and occupational health scientist, with epidemiology and public health perspective. He works primarily as a consultant, with additional experience as a University-based research scientist. He has assessed indoor air quality and ventilation, as well as mould and moisture, in airports, hospitals, public buildings, and schools since 1979, including a moisture and mould assessment of the residence of Amazon's chief executive, Jeff Bezos. He is one of 50 persons worldwide with the designation, Certified Industrial Hygienist (CIH), sub-specialty Indoor Air Quality.

In 2020 & 2021, Mr. Prezant assessed ventilation and airborne transmission of COVID-19 in various public buildings and schools, designed the first easy-to-use risk calculator for calculating the risk of COVID-19 infection, and supervised a team of engineers & contractors to re-design hotel quarantine ventilation on behalf of Coronavirus Quarantine Victoria.

Mr. Prezant is the author of numerous professional documents published by professional societies addressing indoor mould, including a co-author of the Bioaerosols chapter in Aerosols Handbook: Measurement, Dosimetry, and Health Effects, and editor of the first edition of Recognition, Evaluation, & Control of Indoor Mold, published by the AIHA.

He is the author of AIRAH’s Guidance Document for Schools: COVID-19 Ventilation Optimisation, and was a contributor to the Harvard School of Public Health document on airborne transmission of COVID-19 in airports. He is a frequent speaker on topics related to indoor air quality, bushfire smoke, indoor moisture and mould, asbestos, methamphetamine labs, and ventilation.

Mr. Prezant is an independent expert for select cases regarding SARS-CoV-2, mould, asbestos, air pollution and cardiovascular disease, and indoor air quality in Australia, New Zealand, and the U.S.

Mr. Prezant assesses built environments for a range of airborne hazards including chemicals, pollutants, and ventilation effectiveness.


If you’d like to discuss how we could assist you, please get in touch and arrange an exploratory call.

Our client promise:

Evidence-based solutions for environmental problems

  • Brad is an authority and all-round problem-solver for indoor air quality issues. He has meticulous attention to detail and rigorous methodologies in addressing virtually all indoor air quality matters, particularly mould remediation, air monitoring and infection control. He has transformed numerous indoor environments, ensuring safer, healthier and more productive living, learning and working conditions.

    Tim Law, PhD
    Technical Lead — Building Sciences, Restoration Industry Consultants

  • We engaged Brad to assist with a claim against our insurance company. He has done brilliant work on our house assessment and expert witness report with great insight into the details. With Brad’s knowledge and scientific analysis we were able to win our case after four years of being denied. Highly recommend!

    Hamid Sotounzadeh

    Sports & Exercise Physiotherapist Practice Director

  • Brad Prezant is the best industrial hygienist I know who understands the importance of HVAC in commercial buildings.

    John Penny
    Director, Viscon Systems

  • Extraordinary! Brilliant! Brad Prezant is an industry influencer who provides comprehensive insight into the current practice of identifying mould damage, evaluating samples, and the process of remediation.

    Scott McFadzen WLS
    Registered Third Party Evaluator, Coach8

  • I cannot recommend Brad highly enough for his knowledge and expertise in the mould/moisture and indoor air quality industry. Whether it's explaining the intricacies of mould contamination within the built environment, the impact of indoor air quality on public health, or management strategies to mitigate moisture-related issues, he has a remarkable knack for making information accessible to all audiences.

    Shelby Berg
    Laboratory Manager, VIRIDIS

  • Brad Prezant stands out as an exceptional environmental professional with a wealth of experience. His consultations and training programs in restoration and remediation have been instrumental in elevating the standards of assessment and execution for remediation projects, particularly in addressing water damage and other environmental hazards.

    Andrew Kirk
    National Assessing Manager, HomeRepair