Monitor humidity levels
The reason you want to monitor humidity levels in your home is that high levels can cause mold and mildew to develop. According to the CDC, it’s quite common to find mold in households, and those with allergies or asthma must be particularly careful about preventing or minimizing mold growth as it can increase symptoms. Recommended humidity levels are between 30 and 50 percent. If you live in a humid environment, you may need a dehumidifier to keep levels down to that range. If you live in a particularly dry environment, you may need a humidifier.