Where does normal household dust come from?

Answer 1

It's in the air from outside coming through your windows and door cracks/seams. Reason I vacuum everyday.

Answer 2

Whatever anybody else is saying,they are only partially right.Dust,indeed comes from all those sources,but only minutely.Have you ever seen,on a windstil day,no movement at all,sunrays coming in, and still dust seems to circle around you?
Well,everything in life slowly turns from its solid form to dust.For humans it takes a bit longer,but for flora etc.it breaks down quickly and dispersed by all flying creatures,flies etc.The story is a lot longer,of course,but just put your brain at work and visualise what,s at work around you......creating dust.
Frans

Answer 3

Over 90% of household dust is dead skin cells shed by the occupants of the home.

Answer 4

Household dust is actually about 95% dead skin

Answer 5

Common household dust is put in your house by the devil to cause arguments between you and your spouse about who will clean the house.

Answer 6

Dust, .. dust mites that are in the carpet and furniture eat the dead skin cells that fall off your body, so its dust mites eating your dead skin and the dust is pretty much dust mite poop.

Answer 7

In a closed environment, most commonly from dead human skin cells, but most doors are open and it comes from a multitude of sources that you could not begin to fathom.Just imagine the smallest particles falling off of everything that comes in your home or passes by.l

Answer 8

Dust is just in the air, and shed human skin.

Answer 9

Most of it is dead human skin and dust mites.

Answer 10

From dead skin cells and hair follicles