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 optimal performance. ANTIMICROBIAL TREATMENT helps inhibit the growth and spread of mold, fungus, and bacteria on the filter surface. Effectively reduces minerals and waterborne pollutants. Ideal replacement for natural cool moisture humidifiers, enhancing water purification and air quality. Replace filter every 2 weeks for best results. Color: White Material: Composite material Package Contents: 4 x Humidifier Filter Note: Light reflection and display settings may cause slight color variations between the image and actual product. Measurement may vary by +/- 1-3 cm.