Covid UK: New government ad urges people to ventilate homes when hosting

The government has launched a new campaign demonstrating the importance of simple ventilation techniques to reduce the risks of catching COVID-19 this winter.

The video demonstrates how, in a home setting, someone infected with the virus talking and interacting with another person produces a build-up of COVID-19 particles in the air. These particles then linger in an unventilated room, like smoke, meaning the risk of catching COVID-19 is significantly increased. However, COVID-19 particles disperse quickly when good ventilation is introduced, even for a short period.

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