I don't need scientific data to tell me when things clearly don't add up - that's why i have common sense. And common sense tells me I'm a lot smaller than my house and there's no way I could shed enough skin to create a visible layer of dust over the entire house every few days.
But if you're still not convinced, then let's do the maths.
A layer of skin varies from 0.5 to 1.5 mm thick, depending on where on the body you measure it. The average person has 1.5-2.0 m surface area of skin. The average house has maybe 100 m2 of floor space.
0.001 m layer of skin * 1.75 m2 surface area of skin on the body = 0.00175 m2 of skin cells shed every 35 days by the average person. Assuming 3 people live in the house and never leave the house or wash themselves that makes 3* 0.0175 = 0.00525 m2 of skin cells.
Now spread that out over 100 m2 of floor space- we'll just ignore the furniture and whatnot for the sake or argument. That's a layer of skin 0.0525 mm thick that would accumulate over 35 days, not enough to even see with the naked eye. I see dust visibly accumulating in my house a few days after dusting. It also accumulates when I'm away from the house for a few days.
Ergo, the skin cells theory of dust is as retarded as it sounds.
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