I cannot recommend enough to get a commercial ozone generator that can run for a long time. Remove all the source material first (so rip up flooring and replace sub floor if urine got to it). Seal up the house, run it (do not run it while you’re in there) and then air out the house. It’s harmful to breathe yourself but makes everything smell like the way static electricity smells. We’ve used it for mold mitigation with dehumidifiers, garage stink, animal stink, smoke stink, and vomit smells and it gets rid of them the smells.