A firm claims its £15 breathalyser test for coronavirus can tell if someone is infected in under a minute.
Breathonix says the device could be used at football matches, other sporting events, and gigs in a bid to help people return to normality.
It comes as many countries battle a second wave of the virus and enter another lockdown.
The test analyses the chemical compounds of people’s breath, which can tell whether or not someone has Covid-19.
Its creators, from the National University of Singapore, claims a pilot trial showed it is more than 90% accurate.
A computer feeds back the results within 60 seconds.
The business is now hoping to get the test approved by regulators after the New Year.
This potential breakthrough comes as countries around the world try to create tests which can be used instead of the PCR (polymerase chain reaction) nasal swab.
The PCR test, which is more sensitive, is in short supply in some parts, the Metro reports.
Breathonix claims its test would be 70% cheaper than the PCR tests.
However, patients infected with the virus might still need the PCR test to confirm it.
Jia Zhunan, co-founder and CEO of Breathonix, said: "The breath test is more like a first-level screen device."
To increase safety the tests use disposable mouthpieces, so there is no cross-contamination.
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A hospital in France is currently using a similar breathalyser test.
But experts say it might be too expensive to use widely.
Scientists and inventors across the globe are currently trying to find new ways to diagnose the virus.
Last month, a British professor announced he had designed a "game-changing" new nose and throat swab test which can detect it in less than 20 minutes.
Stephen Bustin, professor of molecular medicine at Anglia Ruskin University, said it can deliver a "robust and reliable" response on whether a patient is infected.
Scientists hope the discovery could help speed up Britain’s under-pressure testing regime by stopping the laboratory backlog.
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