I was having all sorts of troubles after moving into our luxury home, then my symptoms ranged from dry skin, dry throat, nose irritation that often left myself and others with nose itches. My vocal cords were irritated, & I also had constant headaches. These symptoms affected myself and others whenever I used our Heating & Air Conditioning unit. I went to the hospital to get inspected, & the dentist asked if I had a humidifier in our house. It appears that was the one thing I forgot to install. I never thought it was essential until the dentist mentioned it. I did not realize that I was breathing in dry air during the Winter weeks when our furnace was running. This caused myself and others so much discomfort. I would get shocked each time I touched anything metallic in winter, & I thought there was a concern with our electrical wiring. It turned out to be static electricity caused by an electrical imbalance between our body & our surroundings. The static electricity intensifies when the humidity is really low. Humidity helps prevent electricity build-up by adding moisture to the air. My kid also struggled with dry air during Winter because low humidity is dangerous for asthmatic sufferers. My furniture was also deteriorating due to the low humidity level. This week, I do not worry about our furniture & paintings having cracks due to dry air. My central humidification system, which is linked to our Heating & Air Conditioning unit, has a humidistat that automatically monitors humidity levels in the air & maintains the appropriate level. It is connected to our plumbing system; thus no need for refilling water every when needed.