1.Replacement Humidifier Wicking Filters Compatible with Vornado Evaporative Humidifier EV100 EV200 EVDC300 EVDC500 EVDC505 Evap2 Evap40 (NOT for Evap3) 2.Wicking Filter Compatible with Part # MD1-0034. Approximate Size: 9.45inch x 7.28inch x 1inch. Package Included: 5 x Humidifier Wick Filter 3.Honeycomb pad design, allows for maximum absorption of water for optimum moisture output. Capture impurities in water, such as mineral deposits, it allows a smooth, cool and invisible mist to permeate your home's air. Maintain y indoor air quality. 4.This replacement Humidifier Wick Filter is a great, affordable option for your home humidification. This replacement filter to prevent your home air excessive dryness, especially during winter and summer the low humidity occurs most often. This decrease in humidity can have uncomfortable effects on your body, aggravating your nose, throat and even triggering asthmatic symptoms. Replace a Humidifier Wick Filter is a good solution to increase the air humidity.