Here's an interview with the company's founder about the product Trump was probably talking about, called Healight - administers UV to the lungs via bronchial catheter:

https://seekingalpha.com/article/4339281-aytu-biosciences-aytu-ceo-josh-disbrow-on-covidminus-19-initiatives-update-call

And here's a paper about the principle behind it, a technique called Ultraviolet Blood Irradiation - "the cure that time forgot":

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4783265/#!po=0.220264

You only have to treat 5-7% of the blood to create a cascade effect that disinfects the rest.

And here's the guy who won the Nobel Prize for Medicine in 1903 for discovering it, Niels Ryberg Finsen:

https://www.britannica.com/biography/Niels-Ryberg-Finsen

The technique was widely and safely used until the 1950's, when cheap antibiotics became widespread, but is still used in tough cases today.

I honestly don't know why you'd have NPC friends though, so feel free to share this with sane people as well, and be sure to red pill them about Fake News while you're at it.