Recently, the editor discovered that in addition to traditional epidemic prevention measures such as alcohol spray guns, temperature measuring guns, and wearing masks, recently an "epidemic prevention door" has been added. As long as people pass by, the light source can be used to kill germs.
A few days ago, at the "Seoul Forum 2021" venue, in order to stop COVID-19, an air shower (inlet air purifier) was installed at the opening ceremony and the keynote speech. Purium, the developer of the product, said that instead of spraying disinfectant directly on the body, it uses ultraviolet wind to collect bacteria and dust on the body, and centrally disinfect it through an internally developed UV-LED module. Method, it can effectively remove 99.9% of viruses.
This is different from the usual automatic sterilization doors. Most sterilization doors use ultraviolet mercury lamps. For example, the Taichung City Traffic Police Brigade has added an "automatic temperature measurement and sterilization door". For sterilization and disinfection, UVC sterilization lamps are used. After 2 to 3 seconds of irradiation, more than 90% of the disinfection effect can be achieved. Another example is the intelligent safety and epidemic prevention door set up at the airport, which is also eliminated by ultraviolet mercury lamps.
Airport Intelligent Security Anti-epidemic Door
However, with the impact of the official entry into force of the Minamata Convention, UV mercury lamps have been gradually replaced by UV LEDs due to certain hazards. The products developed by Purium just take advantage of the advantages of UV LEDs such as safety and low power consumption. People in the LED industry are exploring directions.
