Can ozone damage electronics?

Yes, ozone can damage electronic devices. As a strong oxidizing agent, it reacts chemically with various materials inside the devices, resulting in decreased performance, shortened lifespan, and even immediate failure.
This kind of damage does not occur suddenly, but is a long-term cumulative process. The specific damages mainly manifest in the following aspects:
⚙️ Specific damage mechanism
Corrosion of metal components: This is the most significant risk. Ozone will oxidize the copper, silver, aluminum and other metals on the circuit board, causing an increase in contact resistance and even triggering an arc, which seriously affects the conductivity and ultimately leads to circuit failure or short circuit.
Aging non-metallic materials: Organic materials such as rubber seals inside equipment, plastic cable sheaths, and circuit board coatings, when exposed to ozone, will age, become brittle, and crack. This will damage the sealing performance of the equipment and may cause internal precision components (such as sensors, microprocessors) to malfunction due to loss of protection.
Causes physical and chemical damage: Inside high-voltage equipment, ozone is a significant factor in "electrochemical breakdown", which accelerates the deterioration of insulating materials and eventually leads to the breakdown of the insulating layer. Moreover, in humid environments, ozone may react with nitrogen oxides in the air to form nitric acid, intensifying the corrosion of metal components.
⚠️ Key Factors: Concentration and Time
Not all exposures will immediately cause damage. The destructive power of ozone mainly depends on three crucial factors:
Ozone concentration: This is the most crucial factor. Generally, it is believed that short-term exposure to low concentrations (such as below 0.1 ppm) has little impact. However, high concentrations (for example, 15 ppm) carry an extremely high risk of damage.
Exposure time: Even long-term and continuous exposure to even relatively low ozone concentrations will accelerate the aging and corrosion processes of the materials.
Environmental conditions: High temperatures and high humidity will significantly enhance the oxidation activity of ozone, doubling its destructive power.
??️ Protective Measures
Removing Equipment: When using ozone equipment (such as disinfection machines, purifiers), the best practice is to remove all electronic devices that are not resistant to ozone from the room.
Proper ventilation: After use, ensure thorough ventilation to reduce the ozone concentration to a safe level before allowing the electronic devices to be placed in this environment.
Physical isolation: For large equipment that cannot be moved, it can be tightly wrapped with plastic sheets or similar materials to serve as a temporary barrier.
Inspection and Maintenance: For precision instruments that may have been exposed to high concentrations of ozone, it is recommended to contact professionals for an assessment to check if the internal components have been damaged.
In conclusion, ozone does pose a substantial risk of damage to electronic devices. The most effective way to protect the devices is to prevent them from being exposed to ozone.