[Filter Slots]Please keep these reusable filter frames after using. Assemble provided foam filter and ultra fine filter into reusable filter frames for next use.[save money]Reusable filter frame can help you save money, replace every 2 weeks, ONE YEAR SUPPLY! It can also reduce plastic pollution.[Protect Your Machine]The filters keep dust and dirt away from your machine, which can protect your health and make your device with you for many years.Colour:White+blueMaterial:Plastic+CottonPackage Contents:12 * Reusable Filter Slot12 * Disposable Ultra-Fine Filters40 * foam filters40 * ultra fine filtersOnly 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.