Aromatic Vinegar

Mix with a table-spoonful of vinegar enough powdered chalk to destroy the acidity. Let it settle–then turn off the vinegar from the chalk carefully, and dry it perfectly. Whenever you wish to purify an infected room, put in a few drops of sulphuric acid–the fumes arising from it will purify a room where there has been any infectious disorder. Care is necessary in using it, not to inhale the fumes, or to get any of the acid on your garments, as it will corrode whatever it touches.

Source: The American Housewife