call for black soot in house everywere puffback 

call for black soot in house every were puff back .appaired to be soot through out the house .just started after 10 years of living in house . i run through testing gas boiler,gas stove, drier ect . found she was burning candles but not enough she things to cause this amount of damage what i find in the end to be the cause was right in front of me .but i over looked it .