So far, I don't know as there's been any improvement over the original anti-microbial agent used in hospitals 150 years ago. Carbolic acid in weak solution is still probably one of the best out there. Nurses used to walk through the wards of hospitals with little perfume atomizers full of the stuff spraying the air around patients beds and having great success controlling infections.

Of course we know the chemical by it's hazmat name, Phenol. Good luck trying to get any nowadays.