How does ozone gas impact coronavirus particles?

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Ozone Gas Demonstrates Significant Efficacy in Neutralising Coronavirus Particles

Low concentrations of ozone gas have been shown to effectively neutralise coronavirus particles, offering a potential method for disinfecting spaces even in the presence of humans. Research indicates that ozone at concentrations between 0.05 to 0.1 parts per million (ppm), levels deemed safe for human exposure, can significantly reduce the virus's potency. These findings suggest a promising avenue for mitigating the transmission of SARS-CoV-2 in various environments.
Reduction in Viral Potency Observed

An experiment conducted by researchers at Fujita Health University demonstrated that exposing coronavirus particles to low-level ozone for a duration of 10 hours within a sealed chamber resulted in a decline in the virus's potency exceeding 90%. This substantial reduction highlights the gas's capacity to inactivate the virus under controlled conditions.
Potential for Continuous Disinfection in Occupied Spaces

The study suggests that continuous treatment with low-concentration ozone could be a viable strategy for reducing the transmission of the novel coronavirus. This approach is particularly relevant for environments where people are present, as the ozone levels used are considered harmless. The effectiveness of ozone in high-humidity conditions was also noted, further expanding its potential applications.
Inactivation of Pathogens is a Known Property of Ozone

Ozone, a molecular form of oxygen, is recognised for its ability to inactivate a wide range of pathogens. While previous experiments have confirmed the efficacy of higher ozone concentrations (1-6 ppm) against coronaviruses, these levels posed a potential toxicity risk to humans. The current research focuses on achieving similar inactivation with significantly lower, safer concentrations.
Application in Healthcare Settings

Following these findings, Fujita Medical University Hospital in Aichi prefecture, Japan, has proactively installed ozone generators. These units are being used to reduce infection risks within hospital waiting areas and patient rooms, demonstrating a direct application of this research in a real-world healthcare setting.

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How does ozone gas impact coronavirus particles?

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