InspectIR's COVID-19 Breathalyzer device takes only three minutes to analyze and detect an active infection with 99% accuracy for the negative or 91% for the positive test results. The COVID-19 breath test sample itself is collected in about ten seconds, but the device is not intended for at-home usage.
https://www.notebookcheck.net/First-non-invasive-COVID-19-breath-test-approved-by-the-FDA-much-faster-than-antigen-testing.614085.0.html