Air sampler (IMAGE) British Ecological Society Caption Coriolis µ. The air sampler used to obtain eDNA from insects in the field. It works by sucking in air and swirling it through water, where the particles contained in the air get captured. Credit Fabian Roger Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.