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Not long before covid these were installed in front of every house where I live. Is it hazardous to our health?

https://poal.co/static/images/te0p8U.jpg https://poal.co/static/images/UUvlFn.jpg Not long before covid these were installed in front of every house where I live. Is it hazardous to our health?

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[–] • 4 pts

Vertical is better to keep moisture from seeping in. This way water would have to travel upwards to get in.