Conventional drug and bomb detectors use specific detectors designed to filter out interfering substances and achieve YES or NO detection of specific chemicals under very diverse conditions. However, an electronic nose is different because it is designed to quantify and characterize all types of smells universally, including those from bombs and drugs of abuse. It is this universality which leads to a wide diversity of applications.

Here’s a comparative study on, how can electronic noses prove to be more useful in Homeland security applications against traditional bomb detectors?