Whenever it is winter I tend to get scratchy throat prone to getting sinus
infection just sitting at home. Since I live in a rainy winter area, I
wonder if there is mold growing somewhere and leaking into the hvac.

I see DIY mold test kit online. I believe they are dishes filled with agar
gel. Can these kit really tell the difference between toxic mold versus not
so toxic ones (e.g. mold that grows on bread)?



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