About Us

Sealed Air Diversey Care is the leading provider of smart, sustainable solutions for cleaning and hygiene.

MEET THE TEAM

Ivan Obreza

Ivan Obreza

Senior Clinical Advisor, Infection Prevention

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Ivan is Diversey Care’s Healthcare Sector Manager and is the clinical applications resource for Australia and New Zealand.

Ivan provides customer support on Infection Prevention issues related to environmental hygiene, writes technical literature and documents, presents at Infection Prevention events, monitors the scientific literature related to environmental hygiene, and provides training to Diversey Care's employees and customers. He has worked as a clinician and as a supplier to the Healthcare industry for 20+ years.

Ivan’s education includes a Bachelor of Nursing from the University of Newcastle, a Bachelor of Paramedicine from Charles Sturt University and a Master’s degree in Commerce from the University of Western Sydney.

Michael Hogan

Michael Hogan

Queensland Healthcare Manager

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Michael manages the Queensland Diversey Care team. Michael has over 20 years’ experience in providing the health and aged care sectors with advice, technical support and training in cleaning, hygiene and infection control. An example is the work done with designers and environmental services staff at The Gold Coast University Hospital where Michael was an advisor on the design, installation and implementation of their cleaning and hygiene systems.

A.J. Alphonso

A.J. Alphonso

Victoria, Tasmania, South Australia and Northern Territory Healthcare Manager

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With over 16 years’ experience in Sales Operations and Business Management Alphonso has a successful background in leading top-performing teams who are focused on exceeding performance in the areas of operations, sales and customer service.

David Purnell

David Purnell

New South Wales Healthcare Manager

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David has been in the Cleaning and Hygiene industry for over 10 years. He has worked for two global leaders in the hygiene industry in a number of roles from customer facing Account Management to Business Development.

Patrick Young

Patrick Young

Western Australia Healthcare Manager

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Patrick works closely with many healthcare customers in the Western region including hospitals and aged care providers.

He has worked for Diversey Care globally and has significant experience advising healthcare providers. His experience includes having worked on Infection Prevention projects for the NHS and UCHL. Patrick has a Bachelor’s degree in Chemistry and a Master’s degree in Business Administration.


Sarah Mangala

Sarah Mangala

Healthcare Product Manager ANZ

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Sarah is a Marketing Specialist with a Bachelor of Marketing and is responsible for bringing Diversey Care’s global innovations to Australia and New Zealand. Sarah works closely with Ivan Obreza to manage the Healthcare product portfolio. Sarah is the key contact for marketing literature, advertising and PR.

Tarn

Tarn Mullaly

New Zealand South Island, Infection Prevention Specialist

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Tarn is Diversey Care New Zealand’s South Island Infection Prevention Specialist and is the Territory Manager for Christchurch, Marlborough, Canterbury and the West Coast since 2014.

Tarn has over 28 year’s experience working for a number of multinationals in Key Account, Territory Management and Contract Negotiation roles.

Tarn has a sound knowledge in a broad range of industry sectors, including Healthcare and Infection Prevention, Food Hygiene, Dangerous Goods and Hazardous Substances.

Tarn offers professional consultancy, site audit, training, on-going support and will tailor the best solution for your facility based on your requirements.

Pat Hoare

Pat Hoare

North Island Infection Prevention Specialist

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Pat is Diversey Care New Zealand’s North Island Infection Prevention Specialist and is also the Territory Manager for the Waikato/ Bay of Plenty region.

With over 5 years experience at Diversey Care New Zealand, Pat has developed a passion for the healthcare sector. Pat successfully led the first hospital implementation of the Oxivir® Tb wipe system to replace the conventional microfibre cleaning processes.

There are many different ways to control and prevent infections so contact Pat to discuss your cleaning and disinfection requirements, and he'll tailor a solution to suit your facility.

Mr Peter Teska

Mr Peter Teska

Global Infection Prevention Application Expert

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Peter is the global resource for Infection Prevention applications and is based in our Charlotte, North Carolina HQ in the US.

Peter has presented at a number of Infection Prevention events in the US and internationally to Healthcare audiences in Finland, Brazil, Japan, and Australia. He has co-authored posters at a number of Infection Prevention conferences include IPAC 2015, SHEA 2015, APIC 2014, 2013, and 2012, HIS 2014, and ICPIC 2013.

Peter’s education includes a BS in chemistry from the University of Wisconsin at Stevens Point (UW-SP) and a master’s degree (MBA) in business administration from Cardinal Stritch University. He is currently working on his doctorate in public health (DrPH).