Harness Ozone technology as a sustainable solution for purification and disinfection

Isa Tanriverdi, Technical Director at OZCON Environmental, highlights the role of ozone as an eco-friendly oxidant used across the healthcare, food processing, and HVAC industries. With proper controls, ozone offers residue-free purification, energy efficiency, and unparalleled reach. If used correctly, ozone complements filtration and UV but does not replace them. 

What role do ozone systems play in varied applications for purification and disinfection?

Ozone is one of the most potent oxidants that can be used safely. It is versatile, whether in water treatment, air purification, food safety, or surface disinfection, as it works fast and decomposes into oxygen. Unlike traditional chemicals, it leaves no harmful residues. That is why you will find it in everything from cold storage and food production to wastewater treatment and even luxury swimming pools. The same core principle applies everywhere: ozone breaks down organic contaminants and microbial threats at the molecular level.

How does ozone treatment compare to UV-C and HEPA filtration for HVAC systems?

They serve different purposes. HEPA filters physically trap particulates, and UV-C is great for keeping coil surfaces clean or inactivating airborne viruses in a controlled chamber. Ozone, on the other hand, can reach into ducts, voids, and textile fibers—places UV and filters cannot. It is particularly effective for odor removal and microbial control in hard-to-access zones. However, it must be dosed carefully. Used correctly, ozone complements filtration and UV but does not replace them.

What are the risks associated with ozone generation in indoor environments, and how can these be managed?

The biggest risk is overexposure. High concentrations can irritate the lungs and mucous membranes. That’s why control is everything. Dosing must be precise, based on volume and air changes, and systems should include timers, sensors, or destructive units. We always advise using ozone in unoccupied spaces unless it is at a low level and well-monitored. The technology is safe when properly designed, but like any tool, misuse can be a problem.

Please discuss healthcare and food processing environments where ozone systems offer advantages.

In healthcare, ozone is used to disinfect instruments, rooms, or HVAC ducts, especially where pathogens or antibiotic resistance are a concern. In food, it is used for washing produce, sanitising surfaces, and extending shelf life in cold stores. Since ozone reverts to oxygen, there is no chemical residue, which is a Huge advantage in both sectors. Additionally, it operates at low temperatures and does not require warm-up or rinse-off steps, unlike some chemical sanitisers.  

In what ways can we ensure compliance with safety regulations and IAQ standards when integrating ozone technologies?

It begins with system design, ensuring ozone levels remain below permissible exposure limits (PEL) for occupied spaces. We rely on real-time ozone sensors, interlocks, and safety shutoffs. In the UK, following COSHH principles and HSE guidelines is key. Internationally, we also check compatibility with OSHA or EU workplace exposure limits. Documentation, training, and signage help clients stay compliant and confident. 

How do energy consumption and maintaining ozone systems compare with air purification technologies in HVAC?

Ozone systems are typically more energy-efficient than people assume, especially when used intermittently or in specific zones. There is no need for large fans or pressure drops like HEPA setups. Maintenance involves cleaning electrodes and replacing oxygen concentrators every couple of years. Compared to high-spec filtration systems, ozone can have a lower operational cost over time.  

What advancements do you see in ozone generation technology?

Miniaturisation and smart controls are areas of advancement in ozone generation technology. We are seeing more compact systems with built-in PID controllers, remote access, and automatic adjustment based on air or water quality. Silent corona discharge technologies are reducing maintenance needs. Additionally, integration with BMS (Building Management Systems) is improving, enabling smarter, demand-based ozone dosing rather than fixed timers.

How do we address the misconceptions companies have about implementing eco-friendly air solutions? 

The biggest misconception is that “green” means “weak” or “ineffective.” I often explain that ozone is nature’s way of cleaning the atmosphere; we’re just applying it in a controlled way. Education is key. Once clients see the science and the safety measures behind it, they usually change their minds. Our job is to demystify the tech and show it is effective and cost-efficient in the long run.