content: This is the worst product as far as cool mist humidifiers go. I just bought it today. I agree with the previous review...it's just a bucket of H2O with a *wick filter* & just a fan blowing cool air. I, too, thought it was missing a piece or I did something wrong. I just returned a Vicks one as it was too loud & there was no on/off switch, but it worked! I'm going to return this one first thing in the morning. Don't waste your money!