Eco-friendly materials: The activated carbon filter uses recyclable activated carbon materials, which can be properly recycled after of the filter's life Filtration function: The filter can adsorb odor molecules in the air, such as pet odor, garbage odor, toilet odor, etc., so that the indoor air remains . Filter structure: The wind resistance when the air passes through the filter is smaller, so that the purified air can quickly circulate in the room, and the consumption of the air purifier can be reduced and electricity can be saved. Easy to replace: The filter is easy to install and replace. All you need to do is open the air purifier's filter compartment, remove the old filter, and insert the new one. Filter dust: There are a large number of dust particles in the air, sand and dust brought in from the outdoors, fabric fibers, skin debris, etc. The filter effectively intercepts this dust and prevents it from circulating in the air.