There are attempts to do something similar outdoors to get an idea which animals are in a certain area. https://www.science.org/content/article/dna-pulled-thin

There are attempts to do something similar outdoors to get an idea which animals are in a certain area. https://www.science.org/content/article/dna-pulled-thin-air-identifies-nearby-animals https://www.science.org/content/article/dna-pulled-thin-air-...