I was exposed to Black mold for 2 years, I was rolling around in it and working in it with out proper gear. I m 43 now I went in for my yearly check up and now I have a heart murmur. Never had one before! I m not saying it s the mold that caused it, I have just been reading up on a lot of mold issues and now I m not sure. I would object to working in those Building s that had mold in because I don t have a Spleen and I have a weak immune system. I m not talking a little black mold, I am talking about from the floor, walls, ceiling and every where else.