Reliable Material: These humidifier filters are made of premium polyester, offering reliable and durable performance. They are odor-free, have excellent water absorbency, a large absorption area, and are resistant to breaking or deformation, ensuring confident use. Product Functions: Our mineral absorbent pads help prevent mineral buildup, purify minerals and impurities from water, and effectively filter out particles, minerals, dirt, and odors. This enhances humidifier performance and extends its lifespan. Compatibility: Compatible with Levoit Humidifiers LV600S, LV600HH, and OasisMist 450S only. Please confirm your humidifier model before purchasing. Note that this product is not sponsored, endorsed by, or affiliated with Levoit or any other brand. Specifications: Color: White Material: Polyester Product Size: 5.3 x 5.3 cm / 2.09 x 2.09 inch Package Contents: 20 x Filter Element Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement tolerance: ±1-3 cm.