Customers at a factory show room have to pass through a homemade sanitising tunnel to try and prevent the spread of the coronavirus.

The DIY device has been installed at the entrance of the business in Bangkok, Thailand, where cases of COVID-19 have been slowly brought under control since the pandemic began.

Footage shows how the walkthrough cubicle made from a metal frame and blue perspex is connected to a tank of alcohol-based sanitising liquid.

Electronic sensors detect when someone enters the tunnel and the spray is activated from above them.

While the solution is unlikely to kill the virus of anyone carrying it in their blood, the solution may be helpful in destroying the germs if they are resting on someone's clothing or hair.

''It's also about increasing awareness of hygiene and preventative measures,'' said the owner.

''The tunnel shows everyone that we are taking the pandemic seriously, so it reminds people to be responsible, which will save lives in the long term.''

Since the Chinese virus outbreak escalated in January and recording began, Thailand has reported a total of 2,907 cases and 51 deaths, while 2,547 patients have recovered and gone home.

Inbound passenger flights were temporarily banned and all non-residents were stopped from entering the country while all non-essential businesses such as shopping malls, bars, hairdressers and restaurants, were forced to close.

Residents are banned from gathering in crowds and must also wear masks on public transport and following social distancing guidelines.