yingtai, OMG Naomi Wu actually managed to bring to market her far-UVC lights, which are magically germicidal and make it much safer to eat in public. I know UV sounds scary, but it's a pretty safe part of the spectrum, and she's figured out a design that maximises protection while making it even safer. https://cybernightmarket.com/products/mini-far-uvc-lights-set
If you have US$349.95 to spare, this is a great way to support her after the Chinese government silenced her, apparently for speaking up about infosecurity. https://skepchick.org/2023/08/maker-naomi-wu-is-silenced-by-chinese-authorities-and-why-i-blame-elon-musk/