Are you looking for a whole house humidifier? They are the best for protecting you and your family from unhealthy air. During winter time, the air can easily cause dry skin and damage your health.
Also, without a whole house humidifier, family members who have allergy problems would experience more allergic reactions. Your house would also get damaged from bad air. You can invest in your health and property by simply buying a whole house humidifier.
You can easily install one yourself, or hire a professional to do it. Your local store has bunch of humidifiers that are easy to install yourself.
I highly recommend you pick one out that automatically adjusts the level of humidity. Whole house humidifiers are preferable for large homes compared to portable ones. If you have a small house, an inexpensive portable humidifier might be all that you will need for your family.