As part of a study recently published in the journal PeerJ, the scientists collected air from a room that had previously housed naked mole-rats. Using existing techniques, the team checked the sample for DNA sequences and found mole-rat DNA.
https://www.techspot.com/news/89181-scientists-show-first-time-possible-collect-dna-air.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/89181-scientists-show-first-time-possible-collect-dna-air.html?utm_source=dlvr.it&utm_medium=blogger