4 layers of composite material can effectively lock in dust, pollen,
allergens, etc.
Silver ion antibacterial ingredients are added to each layer of material to
effectively inhibit unpleasant odors caused by the growth and reproduction of
bacteria, toxins and other microorganisms, with an antibacterial rate of
>99%*
Activated carbon is added to the melt-blown inner layer to help absorb odors
produced by common household waste.