The Bio-Decontaminator emits a wavelength of UV-C light at a dosage that inactivates SARS-CoV-2 on a cellular level. When the machine's light penetrates a cell of the virus, it damages that cell's genetic material and prevents it from reproducing.
COVID-19 is caused by SARS-CoV-2. The Bio-Decontaminator inactivates similar coronaviruses and it is expected to inactivate SARS-CoV-2 when used in accordance with the directions for use against SARS or MERS on hard, non-porous surfaces.
Sanitization is intended to take place at the final point of contact, placing the items on a conveyor belt, where they then go through an enclosed UV-C tunnel. From there, bag your own groceries using provided gloves or sanitizer, or have a trained employee wearing new gloves and an N95 mask bag them for you.
The process is totally food safe. In fact, it's even better than liquid sanitizers because it's free of chemicals and residues, and may even extend the shelf life of products.