Product review (5 stars): Venta Sonic humidifier: Allergy-free relief from dry heat!
This is a great product.  I have severe mold allergies, so previous humidifiers always required careful cleaning between refills.  Or, they would put out so much moisture that the rug would get wet.  This is great, with adjustable amounts of vapor, doesn't require constant mold-prevention, and the filter keeps the air clean and healthy.  I love this!