
Bradley Prezant
Understanding risk of infection in buildings, measuring air exchange and using covid calculators
Brad Prezant is a public health and occupational health scientist, with an epidemiology and public health focus and perspective. He works primarily as a consultant, with additional experience as a University-based research scientist. Mr. Prezant assesses chemical and biological exposure, and health risk, across a wide variety of building occupancy types, from single and multi-family residential to public buildings and hospitals. Mr. Prezant is a Certified Occupational Hygienist (COH, CIH, sub-specialty Indoor Air Quality), Certified Air Quality Professional (CAQP),and previously a Certified Professional Ergonomist (CPE). Mr. Prezant has most recently, in response to COVID-19, been involved in assessing indoor risk of infection through the use of Wells-Riley based risk calculators, and assessing and modifying specific building ventilation systems to control air movement and minimise infection transmission



Everard Paynter
Chemistry and the affects on indoor air quality
Everard is a second-generation leader of Actichem, having started out nearly 30 years ago under his father and uncle, an accountant-industrial chemist duo. His early years saw him dedicated to developing international class carpet cleaning chemistry for the South African market having been inspired and tutored by Jim Roden (founder of Prochem). Everard has focused on formulation chemistry ever since, expanding into stone care and disaster restoration in Australia and New Zealand since 1999. He has sponsored and worked closely with key stone, carpet and restoration organisations across the globe sharing technical expertise in chemistry, training, consulting and technical challenges encountered in the industry.



Nicholas Osborne
Indoor air quality and public health: will new tools make linkage easier?
Dr Osborne, BSc(Hons), MAgSc, PhD is an epidemiologist and toxicologist with research interests in using environmental epidemiology to examine aetiology and pathological pathways of disease. He has worked on a range of projects examining environmental exposures and health outcomes including exposure to metals, pollen, mould, chronic exposures to low levels of chemicals, pesticide and cyanotoxins. He also has experience examining how exposure to the environment may increase health and wellbeing (green/blue space and solar irradiance and vitamin D).



Gregor Riese
How air purifiers can mitigate mould growth in buildings
Gregor Riese manages the NSW/ACT operations of Opira Group which is a leading provider of indoor environment risk management products and services. Opira specializes in indoor air quality, critical environments and occupational hygiene in the workplace. He completed a Masters in Occupational Hygiene and Toxicology with Edith Cowan University in 2018 and prior to this worked as an environmental planner/project consultant servicing the waste management and recycling industries. Gregor is an accredited WELL AP and NABERS Indoor Environment assessor.



Heidi Scott
Respiratory Protection
Worked in Mining and Resources Industry for over 13 years, including Oil and Gas with Ampol, Brisbane Refinery (formally Caltex) and presently working at BHP as Principal Hygienist Open Cut Coal. Passionate professional and advocate to maintain worker health against chronic and acute health hazards.




Jason Green
Respiratory Protection
Jason is a Certified Occupational Hygienist (COH)® and Full Member of the Australian Institute of Occupational Hygienist (AIOH).
Jason has over 28 years’ experience in the fields of occupational hygiene, indoor air and environmental air quality (IAQ/IEQ), chemical exposure, hazardous materials, workplace health and safety (WHS) and environmental consulting. Jason has conducted a diverse range occupational hygiene, IAQ, IEQ risk assessments for a wide range of government, commercial, residential and industrial projects.



Jesse Clarke
Design it dry, build it dry, let it dry
Jesse Clarke holds more than 15 years of experience in the construction industry. He holds the technical lead role of the Building Science Manager, servicing pro clima in Australia and New Zealand. Jesse is an active advocate for a holistic approach to the development of industry guidance, standards and codes.
As the chairman of the AIRAH special technical group for building envelope physics, he is driving standardisation around the use of hygrothermal analysis (WUFI®) for healthier and more durable buildings.



Julie Sullivan
After fire and floods, whats next? A hazmat perspective
Julie Sullivan is a Certified Industrial Hygienist (CIH) from Canada with over 25 years’ experience in the field of occupational hygiene and hazardous materials.
With her Chemistry background, Julie has conducted hundreds of occupational hygiene risk assessments dealing with toxic materials such as lead, ammonia, crystalline silica, isocyanates and clandestine laboratories and more. She served as a medic in the Canadian Naval Reserve and has found that training useful for infection control projects in hospitals and health care environments. A passionate believer that education is the key for worker understanding and protection, Julie has developed and presented thousands of bespoke courses ranging from 1 hour tool box talks to 2 day long hazmat courses.




Jason Green
Panel Discussion



Jeremy Stamkos
Panel Discussion



Patrick Chambers
Panel Discussion




Bradley Prezant
Panel Discussion


