Hello, I'm just after a bit of advice please. I had a call from a school last week. They had come back from 6 weeks holiday to find the dining room carpet covered in mould. I cleaned it last Tuesday and applied a deodoriser. It cleaned up great. But they've just been in contact to say that the mould spores are back (reappeared over the weekend). Can anyone recommend a good chemical for me to treat the area with? Any advice much appreciated!