Trump is a layperson, not in medical field, so doesn’t know the accurate lingo. Would be more along the line of anti-infectant rather than disinfectant. For example drugs such as Metronidazole and ivermectin are anti inti infectants . As for the UV light Trump is an idealist.....now wouldn’t it be interesting if a scientist ran with that idea and developed a UV light that can be used to scope the lungs and kill Caronava just by shining it into the lungs???