Product review (3 stars): Vicks Humidifier Wick Filter
I purchased the Humidifier as prescribed by my doctor, I was instructed to get a cool mist humidifier.  The Vicks Humidifier Wick Filter does not fit around any fixture but stands on its ends against the inside of the humidifier.  Maintenance is easy, but you must be careful NOT to twist the wick as it begins to come apart.