CURB COVID - The Currency Disinfection Box

Coronavirus is an infectious disease that may spread by close contact of any person infected with such a virus. Even if due precautions are taken, yet avoidance of cash usage cannot be avoided and thus it becomes one of the easiest carriers for spreading any virus. Therefore, there is an urgent need to address this issue.

CURB is a currency note disinfecting device, which uses UV-C LEDs to disinfect the notes. A study has shown that the dosage required to kill SARS-CoV-2 is H = 2-5 mJ/cm2 (2000-5000 µWs/cm2).

Working Mechanism:

• When a note to be disinfected is inserted into the device, the rollers pull the note in, which is then guided forward by a steel mesh.
• The note, during this period of 2-3 seconds is exposed to an average UV-C dosage, which exceeds the minimum requirement to kill SARS-CoV-2 (source: https://www.nebraskamed.com/sites/default/files/documents/covid-19/n-95-decon-process.pdf).
• This minimum dosage requirement of H = 2-5 mJ/cm2 (2000-5000 µWs/cm2) can be achieved if the UV-C sources are placed at a distance of 2-3 cm from the surface of the currency note.
• UV-C LEDs were chosen rather than UV-C lamps because they are compact, directional, no warm-up time and have a longer lifetime for frequent on-off cycles.

BOM: https://bom.openbom.com/#/readonly/cb9ac871-8c4f-4dbb-9ac8-718c4f1dbb41?t=0c882de96079573a6c9abd2d1b9a674940dc9ceb