english: molecules that we introduce into our body and then we sweat out and molecules that we may contaminate our fingertips with when we come across substances like blood, paint, grease, but also invisible substances.
non_english: molekuli koje unosimo u telo a zatim izbacujemo znojenjem i molekuli kojima možemo kontaminirati vrhove prstiju kada naiđemo na supstance kao što su krv, boja, mast, ali i nevidljive supstance.