If you have humidity or moisture in your home it can become a problem. It is very important to have your home  be clean and your air quality to be healthy. having your HVAC replaced is important but you can also install a dehumidifier in order to help out those areas in your home that contain too much moisture and humidity. If areas in your home become damp it can cause damages such as mildew and mold. When wood starts growing mold it will become weak and it will eventually collapse. It can als