Features: 1[Widely Compatible] This air humidifier filter is fit for Honeywell HFT600 is a perfect accessory for humidifier. 2[Effectively Filter Impurities] This humidifier filter can effectively filter impurities and maximize moisture output. 3[Eco Friendly Material] Made of paper material which is safe environmentally friendly and durable so you can use it with confidence. 4[Replacement 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. 5[Widely 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