1.Compatible with Nursery Humidifier:Our humidifier wick replacement filters are suitable for Canopy Nursery Humidifier, please check your humidifier model to ensure a perfect fit! 2.PREMIUM QUALITY MATERIAL: These humidifier replacement filters are made from premium wood pulp, professional filter paper with a unique diamond grid structure that enhances product performance to optimize moisture absorption and provide maximum humidity output 3.EXCELLENT PERFORMANCE: The humidifier filter effectively filters impurities in the water and diffuses a water mist into the air to help us improve the dry air environment and moisturize dry skin 4.BEST RESULTS: For optimal performance and to extend the life of your humidifier, we recommend that you replace the filter cartridge every 30-40 days, as the cartridge will absorb impurities in the water when in use causing the cartridge to slowly turn yellow, this is a normal phenomenon of absorbing impurities, so pay attention to the timing of replacement Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.