We have lived in our newly constructed house for 2 years and this winter I have noticed a black carbon film on everything that is white. Our only heat source is electric baseboard heat. I've researched the topic on line and have found that maybe it's from candles that I burn. I also burn candles in the summer and I never had this problem before. The black film is the heaviest right above the electric baseboard heaters. Has anyone ever had this problem before?

Electric baseboard heat does not put out any kind of film but it is a heat source and the convection of the heat can attract the smoke from the candles. There is no cure but to stop burning the candles