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  • Q What is UVC LED?

    A

    UVC LED is a light-emitting diode that emits ultraviolet light in the UVC band (typically 260–280 nm). UVC has strong germicidal capabilities, destroying the DNA/RNA of bacteria, viruses, and other microorganisms, preventing replication and achieving disinfection. It is mercury-free, ozone-free, instantly starts, has a long lifespan, and is more environmentally friendly.

  • Q What is UVC?

    A

    UVC refers to ultraviolet light in the C band (200-280 nm), which has the strongest germicidal power and can destroy the DNA/RNA of microorganisms. UVC in natural sunlight is blocked by the atmosphere. Artificial UVC lamps are used for disinfection, producing no ozone (high-quality lamps) or low ozone.

  • Q HEPA vs UV-C air purification: Which is better?

    A

    HEPA filters capture 99.97% of particles (including attached pathogens) and physically remove pollutants. UV-C inactivates microorganisms but does not remove particles. Best approach: HEPA capture + UV-C inactivation. HEPA is better for allergies/particles; UV-C supplements germicidal action.

  • Q Do UV air purifiers work?

    A

    They effectively inactivate airborne viruses, bacteria, and mold. However, in portable devices, air exposure time is short, limiting effectiveness. Integration into HVAC systems or upper-room UVGI is more reliable for reducing airborne pathogens. The EPA recommends combining with HEPA filtration; it is not a standalone solution.

  • Q What scenarios are suitable for UVC LED air disinfection?

    A

    Hospitals, offices, schools, homes, elevators, and other indoor spaces. Continuous low-dose operation yields the best results.

  • Q What is the principle of UVC LED air disinfection?

    A

    UVC light destroys the nucleic acid structure of suspended microorganisms. Combined with fan circulation, it achieves dynamic purification with inactivation rates over 99.9%.

  • Q What is a UVC air purifier?

    A

    A UVC air purifier uses 270-280 nm UVC LEDs to inactivate airborne microorganisms. Commonly integrated into purifiers or air conditioners. By circulating air and exposing it to UVC, it reduces the spread of viruses and bacteria. Suitable for hospitals and offices but requires enclosed designs to avoid human exposure.

  • Q Can UVC LEDs be used for air disinfection?

    A

    Yes. Often integrated into air conditioners, air purifiers, upper-room air sterilizers, or standalone circulation devices to inactivate viruses, bacteria, and mold in the air.

  • Q Does water turbidity or organic matter affect UVC LED water disinfection effectiveness?

    A

    Yes. High turbidity blocks light; pre-filtration is recommended. UVC LEDs have good penetration but still require clean water quality.

  • Q How is UVC LED installed in flowing water systems?

    A

    Typically built into pipelines or reaction chambers to ensure uniform water contact with the light source. Flow-through designs are common in household water purifiers.

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