The arrival of winter also signals the arrival of drier winter air. In the process of keeping your home or office warm, water vapor that is naturally present in your indoor air can evaporate or escape through various cracks and openings. When indoor air humidity drops below 40 percent, it can aggravate a number of skin and respiratory ailments, including dry, itchy skin, sore throats, nosebleeds and asthma. If you or other members of your home are affected by these ailments, chances are it is due to the lack of proper humidity in your indoor environment. Continue reading →