I am militant about humidifiers. If you know me and don't have one? You will. I will make your life a living hell until you break down and buy one. Why? Because once you turn your heat on for the season, the air starts drying out. Your wood furniture and trim gets cranky. But worst of all? Your nose responds to the dryness by producing wetness. ie sniffles. The constant "sniff sniff" soundtrack of winter could be so easily eliminated if you just plugged in a few humidifiers in your house and office- or at least one by the bed. Soooo easy. And frankly, I don't want to listen to you for the next few months. So listen to me now and buy one. Please. If not for yourself then for your kids' rooms....

from coolest-gadgets.com:
Humidifiers are great especially when the air around you gets way too dry for comfort, but how many of them actually make sure those microscopic critters bite the dust? With the Germ Eliminating Humidifier, you won’t have to worry (too much) about falling sick as germs and bacteria in the air attempt to make their way into your body.

This warm mist humidifier boils and treats water with safe UV-C light to eliminate 99.999% of mold, bacteria, and viruses like E. coli, resulting in the cleanest, most sanitary mist available from a home humidifier. The ultraviolet light bulb and the boiler combine to eradicate microorganisms and heat-resistant mold that lesser models disperse into the air. The adjustable humidistat allows precise humidity control, automatically stopping vapor dispersal when the room reaches the desired humidity level. The unit holds 3 1/2 gallons and provides up to 72 consecutive hours of optimal air moisture for a 400′ sq. room. Specially designed pads in the reservoir absorb water minerals to reduce scale and eliminate the white dust lesser models send i nto the air. UV-C light bulb rated for 2,000 of use.