UK households advised to keep windows shut after 9pm (0.018393947482526807)
Express Weather
· 2 days ago
<a href="https://www.express.co.uk/news/weather/2061056/windows-open-summer-warning"><img src="https://cdn.images.express.co.uk/img/dynamic/153/590x/2061056_1.jpg"/></a><br><br>As the warm nights roll in, many Brits are tempted to leave windows open for a breeze. But, this simple act could invite more than just fresh air.
