Pm2.5 five-layer activated carbon filter (pack includes 5 filters)

It is recommended to replace the filter after a maximum of one week to achieve the best results.

Filter function:

1. The first layer: high efficient filter cloth filter the dust of micron.
2. The second layer: melt blown cloth to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies.
3. The third layer: high efficient filter cloth filter benzene and a smaller function of filtering dust microns.
4. The fourth layer: activated carbon cloth filter density, smaller material.
5. The fifth layer: spun bond cloth, filter out all kinds of harmful substances.