Those you need to clean first with something like an equal mix of Dawn, hydrogen peroxide and baking soda.  

What I did, and it worked perfectly, was I got a gallon of white vinegar, baking soda, hydrogen peroxide, and mixed some of that in a 5 gallon bucket.

Don't even breath (literally) the idea that some mildew/mold in a bathroom gives a tenant the right to vacate the rental unit.Bleach will remove this but a mixture of hydrogen peroxide in a little water tends to kill it better.Gail

The rotten egg smell is an indication of hydrogen sulfide in the water which can occur naturally, but is very corrosive and can cause problems with plumbing and fixtures. 

We were thinking hydrogen-sulfide producing bacteria (thanks google).  

I also had the documentation in case there was issues with the future buyer.I use a product called Serum which is hydrogen peroxide based.

Intel is a great example, who is building the largest chip manufacturing plant in the US right here, and it will be a $20 billion dollar investment that brings a few new thousand jobs.https://www.dispatch.com/story/business/2022/01/21/intel-ohio-building-computer-chip-factories-licking-county-jersey-township/9173472002/ Another example of economic growth is the upcoming Ohio State University Wexner Medical Center Inpatient Hospital which is a 1.9million square foot hospital that will bring over 800 new beds and a thousand new jobs. https://abc6onyourside.com/news/local/new-osu-hospital-expected-to-transform-health-careHere are a few more recent investments https://www.10tv.com/article/money/business/hydrogen-power-company-hyperion-bringing-700-jobs-to-columbus/530-25907aab-5517-4661-a9f3-d2ed2d5be6b0 https://news.wosu.org/news/2022-02-08/rumpke-to-build-50-million-recycling-facility-in-columbus Check out The Complete Guide to the Columbus, Ohio Real Estate Market which goes through the Columbus, Ohio market in depth and will give you a better scope of where the highest levels of growth are taking place and where to look to invest.

Does hydrogen peroxide work on human urine?

I was just reading that Hydrogen Peroxide, Baking Soda and Vinegar are all ammonia neutralizers.

With the hydrogen bomb and missile threat and instability in the administration I am surprised many think everything is going well.