HIGH QUALITY AIR FILTER designed to replace your humidifier filter and help restore clean air quality. Premium humidifier filter constructed with high-quality materials to help reduce the presence of limestone, bacteria, germs, and fungi in the air. Promotes safe and clean humidifier operation. EASY TO INSTALL – Simply remove the old filter and insert the new one for quick maintenance and improved performance. ANTIMICROBIAL TREATMENT helps inhibit the growth and spread of mold, fungus, and bacteria on the filter surface. Effectively reduces minerals and impurities from water. REPLACEMENT FILTER compatible with natural cool moisture humidifiers. Helps improve water quality by removing minerals and pollutants. Replace the filter every 2 weeks for optimal performance. Color: White Material: Composite material Package Contents: 4 x Humidifier Filter Note: The package includes only the items listed. Other products are not included. Due to lighting effects and monitor settings, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.