A humidistat is a device that measures the humidity levels in a space. Also known as a hygrostat, it is commonly installed in stand-alone humidifiers, dehumidifiers, air conditioning systems, or ventilation fans. It turns the connected system on and off based on whether your set humidity level is achieved. Maintaining proper humidity levels helps reduce allergens and improve your indoor air quality.
How Does a Humidistat Work?
A humidistat is a switch that functions similarly to a thermostat, but it regulates humidity rather than temperature. It has a sensor made of alternating metal conductors that senses changes in humidity. It then signals its connected device to switch on or off as required.
What’s the Difference Between a Hygrometer & Humidistat?
A hygrometer is a device that displays the humidity level or the amount of water vapor in the air. It provides humidity information, but cannot control any device.
A humidistat, on the other hand, functions as both a sensor and a controller. It not only measures humidity but also communicates with other devices to help maintain your desired humidity level.
What Should You Set Your Humidistat To?
The ideal indoor humidity range is 30% to 50%. Dry air can cause skin issues, irritated sinuses, and static electricity, while high humidity can lead to mold, mildew, and musty odors.
For most homes, setting your humidistat between 35% and 55% helps maintain comfort and promotes a healthier indoor environment. You may need to adjust these levels slightly depending on your climate, your home insulation, and seasonal conditions.
Benefits of Using a Humidistat
A humidistat offers several key benefits that enhance comfort, protect your home, and improve indoor air quality.
-
Improved Comfort
A humid environment holds more heat, often making your home feel hot, sticky, and uncomfortable. On the other hand, a dry environment is harsh for the skin, eyes, and sinuses.
A humidistat helps maintain balanced humidity levels, preventing your home from feeling too dry or too muggy. Maintaining balanced moisture levels ensures consistent indoor comfort.
-
Mold and Mildew Prevention
By keeping humidity within a healthy range, a humidistat helps prevent mold and mildew growth. It can automatically control ventilation fans or dehumidifiers in moisture-prone areas, such as bathrooms and basements, to keep humidity in check.
-
Lower Energy Bills
Using a humidistat can help your HVAC system run more efficiently. When humidity levels are too high, your air conditioner has to work harder to cool your home. A humidistat reduces this strain, helping lower energy consumption and bills.
-
Better Indoor Air Quality
Maintaining humidity levels between 30% and 50% helps minimize airborne irritants such as dust mites, mold spores, and bacteria. This not only improves the air you breathe but also reduces issues like dry skin, sore throats, and respiratory discomfort.
