Humidity Level For Basement. So what s considered normal when we talk about humidity levels for a basement. The ideal humidity level for a basement is below 50 percent.
During summer months the air outside is hotter and more humid. Whether your business is finished or unfinished it is still to maintain this humidity range to reduce or prevent harmful bacteria from growing in your home. Well the average level of humidity should be anywhere between 40 65 percent depending on the climate weather and other amenities in the basement.
That air can make its way into your basement increasing your humidity levels to around 60 percent.
Anything over 80 percent is problematic because that s when mold and mildew will flourish. So what s considered normal when we talk about humidity levels for a basement. However most experts including the mayo clinic say that an idea home humidity level falls between 30 percent and 50 percent. On january 6 2021 by amik.