Asked by: Anonymous
Certainly! It’s a filter for dust, pollen, spores, viruses and bacteria. Particles stick to the wet surface of your nose hairs, which prevents them from reaching your lungs and causing infection. Eventually you’ll either blow the nasties into a tissue, or swallow them, to be destroyed in your stomach.
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Authors
Luis trained as a zoologist, but now works as a science and technology educator. In his spare time he builds 3D-printed robots, in the hope that he will be spared when the revolution inevitably comes.
