[Exact Fit for Humidifiers]: MD1-0034 humidifier wick replacement filters are specifically engineered to replace part #MD1-0034.Compatible with Evaporative Humidifier Model Evap2, Evap40, EV100, EV200, EVDC300, EVDC500, EVDC505 (Not for Evap3). [High-Absorbency Fibers for Efficient Humidification]: md1-0034 humidifier replacement wick filters are crafted from high-quality filter paper and have excellent absorption.Honeycomb mesh and multi-layer filtration trap minerals from water and impurities for cleaner mist.Maintain consistent humidity levels,relieving dry skin,congestion, and static. [for Cleaner Air]: MD1-0034 replacement humidifier wicks filter are infused with an special process layer. Filter out the minerals and impurities in the water. [Long-Lasting 4-Pack Value]: Comes with 4 replacement filters to keep your humidifier running smoothly year-round. Each filter lasts 6-8 weeks (depending on usage and water quality), eliminating the need for frequent reorders. [Easy to Install & Maintain]: No tools required-simply remove the old filter from your humidifier's tank compartment and slide this md1-0034 humidifier replacement wick filter in. Color: As Shown Material: Composite Package Contents: 4*filter element Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.