The HostZERO Microbial DNA Kit is designed to overcome the challenge of contaminating host nucleic acids in microbial samples. This kit uses a novel method to reduce the amount of contaminating host DNA by selectively lysing the eukaryotic cells and degrading this DNA prior to total DNA purification. Paired with Zymo Research’s non-biased purification technology, the HostZERO Microbial DNA Kit allows for the exclusive capture of DNA from living microbial cells in a biological sample. This new technology is able to reduce the presence of human DNA in a saliva sample from 65% (untreated sample) to less than 1% (treated sample). Concurrently, the depletion process utilizes the ZymoBIOMICS non-biased DNA isolation technology for accurate data representation. Finally, the HostZERO Microbial DNA Kit recovers the highest amount of bacterial DNA as compared to other methods. By removing the presence of host DNA and reducing bias in purification, the HostZERO Microbial DNA Kit produces the highest-quality data for microbial samples.