Choosing a humidifier not only increases the comfort level in your house but also prevents damage to walls, wallpaper, and wood floors from excessive dryness. Humidified air has been shown to reduce the level of bacterial, viral, and allergenic contaminants in the air and is therefore recommended for children or the elderly. It is also helpful in the winter to battle the drying effect of indoor heating or to help in healing a dry cough. Choosing one can be difficult if you don’t know what to...