In order to limit the spread of Coronavirus, the Government are urging us to allow air to circulate within closed spaces.

A new public health campaign suggests that allowing fresh air to circulate while indoors can reduce the risk of infection by over 70%.

The campaign, which forms part of wider ‘Hands. Face. Space’ guidance, sees the release of a new short film created with scientists and an engineer at Leeds University.

The film illustrates how coronavirus lingers in the air in spaces with no fresh air, increasing the risk of people breathing in infected particles, and how the risk can be reduced significantly by regularly ventilating enclosed areas.

GP, Dr Amir Khan who voices the video said:

“As we approach winter, and inevitably spend more time indoors, fresh air is extremely beneficial. For COVID-19, it is important to ventilate indoor spaces if someone in your home has the virus as this can help prevent transmission to other household members.

“You should also let fresh air into your home when you have any visitors and just after they leave in case they are infected. Remember, opening windows alongside washing your hands, covering your face and making space is also essential in reducing your risk of COVID-19.”

As we spend more time indoors, experts are recommending that the public open windows for short, sharp bursts of 10 -15 minutes regularly throughout the day, or leave windows open a small amount continuously, to remove any infected particles lingering in the room.

Professor Catherine Noakes, from Leeds University who advised on the film, said:

“When a room does not have any fresh air, and where people are generating large amounts of aerosol through activities such as singing and loud speech, that is when transmission of coronavirus is most likely. Fresh air must come from outdoors – recirculating air just means the aerosols containing the virus move around the same room rather than being extracted outdoors.

Coronavirus is spread through the air by droplets and smaller particles (known as aerosolsthat are exhaled from the nose and mouth of an infected person as they breathe, speak or cough]. They behave in a similar way to smoke but are invisible. The majority of virus transmissions happen indoors. Being indoors, with no fresh air, the particles can remain suspended in the air for hours and build up over time.

The longer people spend in the same room as these particles, the more likely they are to become infected.

You can view the safety video from the NHS & Dr Khan below: