Humidity is a way of describing the amount of moisture (water vapor) in the air. “Relative humidity” is usually what we call the levels at home, and it’s expressed as a percentage. The ratio describes the current amount of water vapor in a given region relative to the amount that would be present if the air were saturated.

The more moisture in the air, the higher this indicator will be. Higher temperatures can hold more moisture, so these levels often remain high in many places during the summer. As mentioned above, this can lead to higher humidity levels in the room, and we want to avoid this situation.

When humidity is too high, it can cause poor indoor air quality, structural problems and microbial growth. (Mold can grow at 60 percent relative humidity.)

However, you also don’t want the room to be too dry! This can lead to adverse health reactions, such as respiratory discomfort, and structural problems, such as wood splitting.

The ideal humidity level in the house should be between 35 and 50 percent. Ideal humidity should be maintained not only for comfort, but also for safety.