I have become a little concerned about my soy candles. I put one in my bathroom a couple weeks ago and the commode was covered in black stuff. I cleaned it up and thought surely that is not from my candle which was several feet from the white porcelain. Then I put another one in the same are yesterday. Different scent, different wick. Well lo and behold the white porcelain was again covered in black smut. Does anyone else have this problem? I see evidence of the black soot sometimes in the air vents. When my air conditioner man came recently to change my filters he said I can tell you burn candles. You have soot in your filters. Ok here is the nitty gritty on this. I probably burn a candle no more than 4 or 5 hours a week in total. I am concerned now because I don't want the soot on my wall hanging/paintings and large portraits of family. Then today I noticed the carpet in the threshold of a bedroom that I rarely use and keep the door closed. A black line was in the area under the door. I love making candles and I do sell them on a limited basis also. Is anyone else noticing this and should I be concerned. If I have this much soot from my limited candle burning imagine what folks that burn them all the time have. I will say my place is very open and light so I can probably see it better than people that may not have all the windows and bright natural light that I have.