I can't answer the airborne mold issue but spray it down with bleach and wipe it off without scrubbing if that is what you are worried about. I don't see wet mold getting into the air too much but I don't know. Probably take multiple spray applications. If your father is very ill, get him out of the house till you have the mold problem taken care of. Move him to your house or something. We don't want him dying while you try to get rid of the mold.