HIGH QUALITY AIR FILTER designed to replace your humidifier filter and help restore clean air. Promotes a healthier lifestyle by reducing the release of limestone, bacteria, germs, and fungi into the air. Safe and effective for maintaining clean indoor humidity. EASY TO INSTALL – simply remove the old filter and insert the new one to resume operation quickly. ANTIMICROBIAL TREATMENT helps inhibit the growth and spread of mold, fungus, and bacteria on the filter surface. Helps remove minerals and impurities from water. Ideal replacement for natural cool moisture humidifiers, improving water cleanliness and overall performance. Replace 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 between the image and actual product color. Measurement may vary by +/- 1-3 cm.