WATCH: Finland Airport Using Dogs To Sniff Out COVID-19

An airport in Finland is using dogs for a quick and inexpensive way to test passengers for COVID-19 with a smell test.

Passengers walk into "sniff stations" and wipe their skin, then put the wipe in a jar.

That wipe gets sniffed by a dog in a separate room.

If the dogs deem the smell positive, people are given a free swab test to confirm the results.

Researchers said the dogs are highly accurate.