Here is a snippet from an excellent presentation at The Silver Edge (link to full article including cautions, below)

One Doctor’s Successful Results

Here’s what the Health Sciences Institute told their members about nebulizing colloidal silver back in 2001. (This was directly after the 9-11 attacks on New York City and Washington D.C., and subsequent anthrax mailings; hence the references to anthrax):

“Just in his last decade of medical practice, Dr. Marcial-Vega has treated hundreds of people with a variety of viral, fungal, and bacterial pneumonias. And of all the available treatments, he has seen the greatest success with nebulizer treatments using a colloidal silver preparation.

Silver has long been known for its anti-bacterial properties, and the nebulizer allows the mineral to reach the lungs and kill harmful bacteria. Now, in the face of the anthrax threat, he believes it can do the same thing with anthrax spores.

‘We are constantly filtering all kinds of bacteria through our lungs,’ explained Dr. Marcial-Vega. Normally, a healthy body is able to kill off any dangerous bacteria on its own. But in the case of illness, like pneumonia, or an especially lethal bacteria like anthrax, the body may need some extra help.

Dr. Marcial-Vega says there are no concerns about using this treatment because colloidal silver has no toxicity and no side effects. He has used the colloidal silver nebulizer treatments on infants, the elderly, and AIDS patients with pneumonia and has seen great results. All have responded quickly to the treatment even when no other approach seemed to help, and no one reported any adverse reactions.”

Link to full report can be seen here :
https://thesilveredge.com/nebulize-colloidal-silver/#