HIGH QUALITY AIR FILTER designed to replace your humidifier filter and help restore clean air. HEALTHIER LIFESTYLE! Premium humidifier filter constructed with high-quality materials to help reduce the presence of limestone, bacteria, germs, and fungi in the air. Safe and effective for cleaner indoor air. EASY TO INSTALL – simply remove the old filter and insert the new one for quick maintenance. ANTIMICROBIAL PROTECTION helps inhibit the growth and spread of mold, fungus, and bacteria on the filter. Effectively reduces minerals and impurities from water. Ideal replacement for natural cool moisture humidifiers. Replace every 2 weeks for optimal performance. Color: White Material: Composite material Package Contents: 4 x Humidifier Filters Note: The package includes only the items listed above. Other products are not included. Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.