Timer Filter High Efficiency Replacement Filter For Timer Devices Timer Accessory Features: 3. Upgraded Blue Pre-Filter Layer for Cleaner - Equipped with a upgraded blue pre-filter layer, our filter effectively the amount of large circulating in your indoor. This enhanced layer dust, lint and other impurities, helping to improve the quality around you while humidifying. Product Description: Product Description  Material:wood pulp paper Package weight:about 70g Colour:As Showed Please Note: 1. Please allow slight measurement deviations due to manual measurement. 2. Due to the different and light effect, the actual color of the item might be slightly different from the color showed in the pictures. This high-efficiency replacement filter is crafted from premium materials to ensure optimal humidification performance, maximizing moisture output while effectively filtering large particles from the water. Designed specifically for compatibility with various Timer-brand humidifier models (compatible with Filter and T Filter series), it provides a perfect fit and reliable function as a direct OEM substitute. For best results, the filter should be pre-soaked in clean, cool water for 10-15 minutes before installation to activate the wicking material and ensure immediate, uninterrupted humidifier operation. It features an upgraded blue pre-filter outer layer that effectively traps dust, lint, and other larger impurities, helping to improve air quality and prevent these particles from circulating back into the room. Easy to install—simply place the filter into the housing with the blue pre-filter layer facing outward—this maintenance step helps extend the life of your humidifier and maintain clean, comfortable indoor air.