Features: 1Widely Compatible: This air humidifier filter is fit for Honeywell HFT600 is a perfect accessory for humidifier. 2Effectively Filter Impurities: This humidifier filter can effectively filter impurities and maximize moisture output. 3Eco Friendly Material: Made of paper material which is safe environmentally friendly and durable so you can use it with confidence. 4Replacement Frequency: According to the frequency of use it is recommended to replace it every 23 months to ensure that the machine runs in the best condition. 5Widely Application: Air humidifier filter is easy to install and replace widely used in bedroom living room office etc. Specification: Item Type: Air Humidifier FilterMaterial: PaperFitment: Fit for Honeywell HFT600Weight: Approx. 268g / 9.5ozProduct Size: Approx. 20 x 16.5 x 3.5 cm / 7.9 x 6.5 x 1.4 in Package List: 4 x HumidifierFilter