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What Should Your Humidistat Be Set At?

A good baseline for your humidistat is 40 percent relative humidity, but you might find you prefer a bit more or a bit less. Your humidistat setting reflects how humid your home will be compared to outside. So, a 40 percent humidity setting means your indoor air will be 40 percent as humid as the air outside.

General Setting

Your humidistat regulates the relative humidity in your home. Relative humidity indicates the amount of moisture currently in the air versus what it’s capable of holding (a 50 percent relative humidity level means the air is holding half the moisture it can potentially hold). As the humidity levels in your home change, so will the temperature, so setting your humidistat correctly can change the overall feel of your home.

Set Up for Success

As a general rule, 40 percent humidity is a safe and comfortable level for you and your home, but can change based on personal preference. Between 35 percent and 45 percent will be a comfortable setting for most people, but it’s ultimately up to you.

One thing to consider is that too much humidity in your home can rot wood or cause mold and mildew to build up, so you may need to adjust the setting as the seasons change (especially in winter, when condensation can start to build on your windows). Get in the habit of setting your humidistat for the winter and again for the summer.

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