Successful trial of virus-killing lights

Brightgreen Pty Ltd

Tuesday, 30 June, 2020


Successful trial of virus-killing lights

UV-C ceiling lights that have the capacity to disinfect surfaces were successfully trialled last week.

The lights, developed by Brightgreen, were created in response to the worldwide COVID-19 pandemic.

They have been designed to kill viruses in schools, offices and hospitality venues during overnight disinfection cycles.

“Wellness is the current focus of cutting-edge smart buildings,” said Brightgreen CEO David O’Driscoll.

“When complemented with energy and space management, the results are both productive and cost-effective. Germicidal lighting is one more step in that process.”

Ultraviolet germicidal irradiation has long been an accepted disinfection method in medical fields. The light breaks down, or inactivates, viruses and bacteria at a core level. Earlier this year, a Princeton study found UV-C effective at disinfecting both steel surfaces and fabrics of COVID-19.

UV-C lights, however, can cause skin and eye damage to those exposed. O’Driscoll said that his company’s germicidal system has mitigated this risk by linking the lights to presence monitors and by making the system fully automated.

Both the system’s safety precautions and ultraviolet capabilities were trialled in Melbourne last week. Five dosimeter readings (lighting intensity measurements) had results within the 5% estimate of the company’s predicted range during simulations.

In addition, O’Driscoll said that all safety measures performed as expected. The germicidal system’s timing was fully automated, and the system checked room occupancy and locked the doors prior to activation. Signage outside the room indicated that a disinfection cycle was in operation, and the system immediately shut down if the doors were opened or motion was detected.

The company is working with Gangi Germicidal Systems to ensure that all installs are tested for both safety and compliance with Australian standards.

O’Driscoll said that the lights will be installed as part of the company’s complete wellness system in CORNERBLOCK’S offices in Queensland. He said that two US companies have already commissioned germicidal systems for test spaces.

“We’re hoping these lights alleviate fears people are experiencing as they consider returning to workspaces,” he said.

“It’s a bizarre new reality we live in, but we can take steps to manage risks as we begin to return to a sense of normality.”

Image credit: ©stock.adobe.com/au/vukhoa

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