I have a question! I don’t know much about meth other than it is a major problem that is growing. Anyway, I paint and clean apartments and I have noticed in some of the ones I have cleaned, when I spray my cleaning solutions to start scrubbing, my rag or paper towel turns purple. Does that have anything to do with meth contamination or any other drugs. I’m concerned that I may be bringing this contamination into my home on my clothes.