Product description This high quality Aennon Replacement Filter helps control dust and dirt build-up. It also captures minerals and pollutants from the water and helps prevent impurities from spreading by passing air through the filter. Pack of 3 Replacement Filters is suitable for models Aennon and other brands. Replace filter after every 500 hours or every 6 months of use for a better and longer life of the humidifier. Store up on filters today so you don't have to worry about re-ordering soon again! A small amount of replacement filters are exclusively available on Amazon and they won't last long so order yours today! Click "Add to Basket" now to enjoy clean & fresh air.