I have a pet theory on air humidity and flu or cold. Apparently the scientific consensus is that cold and flu are more prevalent in drier air. However, I see an uptick in both when the temperature is low, but the humidity is 90+%. It is purely anecdotal, but there you go.
In addition to what the other commenter said, when the outside is cold and 95% humid, the inside of a building would be warm and far drier. So the inside humidity % is much lower than 95%. Maybe this contributes to the issue?
You might actually both be saying the same thing here. Caveat being that I have no idea what the science says about cold/flu, but when talking about humidity when the air is colder it is drier. 90% humidity at 35F is not the same as 90% at 85F. As the air cools it is able to hold less moisture. So your observation that there’s an uptick during colder weather at a higher relative humidity could be the same as saying it’s more likely in drier air, because the air is drier when it’s cold, even when the relative humidity shows the same percentage.
I have a pet theory on air humidity and flu or cold. Apparently the scientific consensus is that cold and flu are more prevalent in drier air. However, I see an uptick in both when the temperature is low, but the humidity is 90+%. It is purely anecdotal, but there you go.
In addition to what the other commenter said, when the outside is cold and 95% humid, the inside of a building would be warm and far drier. So the inside humidity % is much lower than 95%. Maybe this contributes to the issue?
You might actually both be saying the same thing here. Caveat being that I have no idea what the science says about cold/flu, but when talking about humidity when the air is colder it is drier. 90% humidity at 35F is not the same as 90% at 85F. As the air cools it is able to hold less moisture. So your observation that there’s an uptick during colder weather at a higher relative humidity could be the same as saying it’s more likely in drier air, because the air is drier when it’s cold, even when the relative humidity shows the same percentage.