So this might not be the answer you were looking for, but from my digging into this ozone treatments can supposedly kill the mold spores but they are still able to somehow harm you when you breath them in. Mold is one of those things that is supposedly so bad to have around, even when dead in the furniture, can continue to harm you.

We have mold in my family's basement downstairs too and I run the ozone generator a lot to freshen the air. But unfortunately parents would never throw out the things.

If you have too much water in the basement a very easy fix that might work for you is to remove anything that blocks drainage on the outside of your house. E.g. there should be a strip of 1m all around your house where there is only earth or light crushed stones, but no tiles or plastic. I have seen two houses where there were tiles in the garden right up to the house wall, and the cellar was wet. Once the garden tiles outside directly next to the house wall were removed, the humidity from the cellar wall was able to evaporate to the outside air and the cellar got dry again.

It might be a very easy fix before you start buying expensive solutions. Maybe you have old pictures of the house before there were problems and you notice there was actually a strip of garden all around the house instead of concrete or tiles.

Be very cautious with ozone generators. Mold might or might not damage you but ozone will definitely damage you even at very low levels that you don't notice.

https://en.wikipedia.org/wiki/Ozone#Health_effects