Yes you are throwing away additional clothing. Buy color safe bleach and try washing. Inspect the clothing after for mold discoloration and smells. If you think the bleach and hot water did the trick than your probably good. You typically cannot wash away the black color from mold in clothing. If its in the carpet than pull it back. It has to dry before you can begin to deal with it. If its in the padding than remove the section and get you a $2 piece from a carpet store and replace the bad section. Take your bleach mixture and spray the back side of the carpet if it hasnt destroyed the carpet. Dont soak the fibers so that it bleachs the carpet just thecarpet backing. Allow everything to dry before putting it all back down. If its on the subfloor, than spray it with your solution as well. If it looks like growth, spray, let dry and encapsulate with paint and put it all back down. This is all a judgement call and you have to decide if you are doing enough steps to reasonably get it all the first time or you risk it getting worse. Just remember to go further with removal of the pad than just what you see, typicall 1-2' beyond the affected area. Once its all back, dont steam clean the carpet, mix up some color safe bleach and test in a small area to see if it bleachs the carpet. If it doesnt in your test are than attack the carpet fibers making sure not to soak the new pad, just dip your rag, ring it out and wipe the are repeating the process. Allow to dry.
Remember mold can cause permanent health issues including cancers and respiratory with only a few seconds exposure, dont wait for this to cause an issue especially if you have kids. When dealing with mold removal do what you can to not make the spores airborne. Dont just start ripping stuff apart, move slowly and let the tools your using do their jobs. Bag the stuff you remove thats damaged up and get it out of the house.Have a fan runnig in a window to help remove airborne spores when taking it all apart.
If your air purifier is not a hepa filter type, shut it off its doing more damage than good.