Health effects of ozone
Even at extremely low concentrations at ppb levels, ozone may still cause harm to the human body, especially the eyes, nasal cavity, and respiratory mucosa. Long-term exposure to high-concentration ozone environments may cause headaches, coughs, and even pulmonary edema. Many countries have set standards that allow for a maximum 1-hour ozone value, usually between 60 and 80 ppb. Taiwan's indoor air quality standards require an 8-hour average ozone value to be less than or equal to 60 ppb (0.06 ppm).
Sources of indoor ozone
Indoor ozone comes not only naturally from outdoors, but also from many indoor appliances, such as photocopiers, laser printers, ozone machines, negative ion purifiers and ultraviolet lamp sterilizers. Some factories also use high-concentration ozone to treat wastewater or exhaust gas, which may endanger the health of employees in the factory and may also pose a risk of spread to surrounding areas.
Known for its highly oxidative and rapid sterilizing effect, ozone is an effective disinfection tool that is widely used in many fields to help ensure the hygiene and safety of water, air and facilities. However, untreated or improperly treated residual ozone can cause limitations in applications. Therefore, care must be taken when using ozone to ensure compliance with relevant safety and environmental standards.
Health effects of ozone
The eight-hour average O3 concentration is greater than 9ppm and the PSI value is greater than 100, indicating poor air quality.
Health effects of ozone
The eight-hour average value of indoor ozone shall not exceed 0.06ppm
Health effects of ozone
The allowable concentration of ozone in the workplace is 0.1 ppm
Through patented catalyst technology, it can immediately decompose and remove ozone in the air under normal temperature and pressure. Metal oxide catalyst, catalyst powder can also be formulated into a slurry and coated on the substrate to make a filter.
Jiufu Technology
Material
Use only excess metal
Material
Use only excess metal
General adsorption method
Material
activated carbon
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The material has a very short life and is saturated within a few days, causing ozone to be released again.
Catalyst Analysis
Material
1. The expensive precious metal platinum (Pt) is commonly used as the catalytic center. 2. The main catalyst needs to add other metals as co-catalysts to increase activity.
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1. The manufacturing process is complex 2. High temperature calcining is required, or oxidizing/reducing agents and other organic solvents are added