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: molekule, ki jih vnesemo v svoje telo in jih nato izznojimo, ter molekule, s katerimi lahko kontaminiramo svoje prstne konice v stiku s snovmi, kot so kri, barva, maščoba, pa tudi nevidne snovi.