Dead Human Skin Helps Clean the Air

Human beings are large ozone sinks:

The dead cells that slough off your skin every day pile up in the dust that collects around your home. But this grimy-sounding stuff actually helps clean the air indoors, according to new research.

Oil associated with dead skin cells removes the pollutant ozone, a molecule made up of three oxygen atoms. In fact the oil, squalene, reduces indoor ozone levels by about 2 to 15 percent. Its molecules contain six double bonds between carbon atoms, and these bonds interact with — and break apart —ozone.

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