What is house dust mostly made of? Is it true that it’s mostly dead skin? Okay, fact: An average home collects about 40 pounds (18 kg) of dust per year. One of the most popular household dust myths is that it’s mostly made of your own skin cells. But in reality, dust has a way more complicated structure. You bring dust in your home from the outside. But even if you never left the house, you’d open windows to get some fresh air. This is when even more dust comes in. If there are trees right by your window, you’d get in some extra dust from birds’ feathers and mites. Also, dust comes from carpet fluff, clothes fibers, your pets, and even your food. Bits of fiber and crumbs of food from your lunch contribute to dust composition. So do your carpets, rugs, drapes, curtains, towels, and upholstered furniture. Your clothing sheds fibers that transform into dust. If you’re using fabric softener, you’re making things even worse. It coats the fabrics with a nice smell and extra softness and that coating flakes off in more dust. And yes, you are also a source of dust. But what about the percentage? #brightside TIMESTAMPS: Why fabric softener makes things worse 1:31 You ARE a source of dust 2:15 Dust mites 3:21 Dust can give you serious health issues 4:33 What would happen if there were no dust? 5:33 Music by Epidemic Sound https://www.epidemicsound.com/ Subscribe to Bright Side : https://goo.gl/rQTJZz —————————————————————————————- Our Social [More]

People claim that 70-80% of household dust is dead skin, but is it true? Thanks to Google for sponsoring this video! Learn more about Search here: https://www.google.com/search/howsearchworks/ Special thanks to J.M.E.H van Bronswijk, author of ‘House Dust Biology’. We exchanged emails to make sure I got my facts straight for this video. Below is an excerpt from her email to me, responding to my claims that start with a dash: – Around half of airborne dust particles under 100um are skin scales This is true for climates, regions and seasons where people live mostly indoors. The 1 to 2 g of skin scales shed each 24 hours will end up in places where people are present (and rub their skin or have textile moving over the skin). You can also look at it from a different angle: What else has the same size and could contribute? That will usually be pollen from outdoor sources, also depending on season, region and climate, as well as the ventilation regime of the building. However, taken as the median value over a whole year, I consider your statement correct for regions with a temperate climate. – 53% of dust particles vacuumed from a mattress were found to be skin scales It depends a little on the type of mattress. For polyether mattresses the amount may even be larger. For mattresses made of natural material it could be less since the mattress-material will also give off small particles. – larger particles consist mostly of fibers, [More]

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