This is an age old question. Actually household dust comes from many sources. Dead skin cells is one source, but contrary to myth, it isn’t the main source. About 60% comes from outside (through clothes and air). Other sources are carpetting and upholstery, pet dander, food crumbs, and a host of other things. https://molekule.science/where-doest-dust-come-from-source-house-solutions/
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Blue Spruce is a professional cleaning service—registered, insured, and reputable—where I, the owner, personally perform all the work. I give you the best of both worlds for high quality and dependability.