UV-LED lamps generally refer to LEDs with a central wavelength of light emission below 400 nm, but sometimes when the light emission wavelength is greater than 380 nm, it is called a near-ultraviolet LED, and when it is less than 300 nm, it is called a far-ultraviolet LED. Due to the high sterilization effect of short-wavelength light, UV LEDs are often used in biomedical, anti-counterfeiting identification, purification (water, air, etc.) fields, computer data storage and military.

Based on the characteristics of UV-LED lamps, in the latest study, scientists from the University of Toronto's Scarborough campus found that the use of UV-LED lamps can destroy the coronavirus and HIV. The lamp can alternate between white light and germicidal ultraviolet (UV) light.

The researchers created droplets containing the coronavirus or HIV to simulate the typical way people encounter the virus in public, such as from coughing and sneezing. The droplets were then exposed to UV light and placed in a culture to see if any virus remained active. After just 30 seconds of exposure, the virus's ability to infect was reduced by 93 percent.

Of course, while the antibacterial potential of UV-LED lamps in the air has long been established, however, its widespread use in public spaces is limited - broad-spectrum UVC light in the wavelength range between 200 and 400 nanometers (nm) destroys the The molecular bonds that hold DNA together can be very effective at killing bacteria and viruses. This conventional UV light is commonly used to sterilize surgical equipment. But traditional germicidal UV light also harms human health and can cause skin cancer and cataracts, hindering its use in public spaces.

In response, the research team is working with Safe Antivirus Technologies to develop a unique UV-LED lighting module. With motion sensors, the lights automatically switch to UV light when no one is in the room, then switch back to normal light when there is movement.

But we still have another way to protect from the bacteria and viruses. That’s improve the air condition. The air quality in office is key to workers' health, comfort and productivity as statistics shows that employees spend roughly one-third of their time sitting at computers and breathe the air in workplace.

Designed to allow air to be extracted through it and help architectural designers create human-centered workplace, Toppo's Air Handling Panel lights-which 's made with air-handling and air-return frame,  used to reduce the heat gains from lighting, is the intelligent choice for improving indoor office air circulation and quality while delivering uniform, safe and gentle lighting.

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