HIGH QUALITY AIR FILTER designed to replace your humidifier filter and help restore clean air quality. HEALTHIER LIFESTYLE! 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 PROTECTION helps inhibit the growth and spread of mold, fungus, and bacteria on the filter surface. REDUCES MINERALS AND POLLUTANTS from water. Ideal replacement for natural cool mist humidifiers, enhancing water purification during use. Replace the filter every 2 weeks for optimal results. Color: White Material: Composite material Package Contents: 4 x Humidifier Filter Note: The package includes only the items listed above. Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.