Miami International Airport (MIA) in the US has introduced a new security scanner as part of a Transportation Safety Administration (TSA) security upgrade.
Testing for explosives, TSA officials will swab the hands of passengers a couple of times and then put the swabbing material into the screening machine.
The TSA has installed 1,200 screening machines across the nation at a cost of $54m, according to WSVN.
The passenger can leave within 15s, when the machine completes reading the material to determine whether the test is positive or negative.
The TSA has used the technology since 2008 but is expanding its use in more airports. The step up in security measures follows the attempted Christmas Day attack on a plane headed for Detroit.