1.Compatible Model: 2 Pack AW200 Replacement Evaporator Mat Filter for B-oneco W200, W220 , W300, H300, H400 Air Purifiers and Humidifiers, please confirm your machine model before purchasing for the humidifier to work properly. 2.Product Performance:AW200 material all mesh and 3D core material production, set this humidifier replacement filter can effectively filter out particles, animal dander, hair, etc., for a healthier living environment to provide a fresh mist to help us improve the dry air environment, which promotes the optimal level of humidity in your home, so that the skin and the body is in a more comfortable state. 3.Easy installation: Replacement for W200, W220 , W300, H300, H400, allows you to take out the dirty cartridge without any tools and replace it with our AW200.Depending on the frequency of use and the environment, it is recommended to change the filters every 4-6 months for optimal filtration, and our cartridges can be cleaned in a washing machine for continued use. 4.Service Commitment: If you have any questions about our products and services, please contact us in a timely manner, we will reply to you as soon as possible and solve your problems in a timely manner, thank you for your support and understanding, I wish you a happy life! 5.Please note: It is a 2 pack of AW200 evaporator mat filter, but does not include the evaporator pad sleeves. Model & Use: AW200 Replacement Evaporator Pad Filter for B-oneco W200, W220 , W300, H300, H400 air purifier and humidifier, the material is made of 3D core and mesh, it is recommended to replace it once every 4-6 months to use it better, you can also use the washer to clean it and continue to use it to reduce your cost. Product Performance: W200 Replacement Vaporizer Pad Filter, this humidifier replacement filter cartridge effectively filters out particles, animal dander, hair, etc., providing a fresh mist for a healthier living environment, helping us to improve the dry air environment, which in turn promotes optimal humidity levels in your home,Keeps skin and body in a more comfortable state