way we can smell a scent from a plant. but this can pick up the scent, the signature, these fumes that the virus emitts in somebody who s positive, in a breathalyzer test. it s unique, innovative testing that s been worked on for the past few years. many companies are working on it. this could be the way we start to test people if we need to in masks at large gatherings in airports. it s cost effective and performs very well. if you re negative on the test, the chances you re negative are very high. the risk of a false negative is very low with the specific modality, it s good news. i guess it s based on the same science as the dogs that were being used to sniff out covid. you know, somewhat similarly. dogs can pick up on the fumes that humans cannot. but a similar type of underlying scientific principal. thanks for all the scientific