Sapo All Natural
PM2.5 Activated Carbon Filters - 10 Pieces
5 Layer PM2.5 Filters with Activated Carbon
Made with waterproof non-woven fabric, melt blown fabric, activated carbon fiber and high efficiency non-woven fabric.
The first two layers are made together. It consist of waterproof fabric that is pressed with melt blown fabric.
The third layer is made with activated carbon charcoal fabric.
The fourth layer is thick layer of non-woven fabric that filters any particles that may have passed through the first two layers.
The fifth layer is a high efficiency non-woven fabric that allows for better air circulation and is skin friendly.