its not a humidifier that you should be using, it a DEhumidifier that you should be using. a humidifer is making it worse.
Easy preventive measures include shutting down humidifiers, drying clothes outdoors and venting the clothes dryer outside the house. One of the best ways to reduce moisture is to use a good quality, quiet [A class=CP___PAGEID_41905 href="vny!://www.cmhc-schl.gc.ca/en/co/maho/yohoyohe/momo/momo_004.cfm"]bathroom fan[/A]. It vents moisture from showers and baths.
[A href="vny!://www.cmhc-schl.gc.ca/en/co/maho/yohoyohe/momo/momo_001.cfm"]vny!://www.cmhc-schl.gc.ca/en/co/maho/yohoyohe/momo/momo_001.cfm[/A]