With various studies indicating that most people spend as much as 90% of their time indoors, the air inside your home can be even more of a concern to your health and comfort, especially in the winter. When cold dry air enters your home and is warmed to room temperature, the relative humidity in the average house can drop to as little as 5%. When you compare that to the 25% relative humidity of the Sahara Desert you can understand why the air inside your home can seriously affect your health and comfort. Research has shown that between 30 to 60% relative humidity is ideal. Outside this range, bacteria, fungi, viruses and mites thrive and multiply. As these creatures increase in number, so does your risk of being adversely affected. 

Since the air inside your home is constantly trying to reach its saturation point, it will absorb water wherever it is found. This means it is literally stealing moisture from anywhere it can get it, from the bodies of you and your family, your pets, your furniture and even your house plants. By giving up moisture to the air, your skin, throat and nasal passages dry out and crack leading to various physical discomforts. This is why many doctors recommend humidifiers for allergy and asthma sufferers. 

Properly conditioned air can save you energy, which in turn
translates into savings. 

Warm, humid summer air feels hotter than it actually is because of the moisture it contains. That same principle applies to your home in the winter. By maintaining the relative humidity in your home at an ideal level, you can turn your thermostat down a few degrees and still feel comfortable. Turning your thermostat down just three degrees can reduce you heating bill by as much as 5%.