1. High-density HEPA, strong compression, controlled wind resistance, dense folds, dust holding capacity
2. Environmentally friendly materials, strong corrosion resistance, deodorization, and inhibition of bacteria
3. Acid-washed modified formula carbon, continuous adsorption and decomposition of formaldehyde/odor
4. Effectively filter PM2.5, secondhand smoke, dust, benzene, formaldehyde and other pollutants
5. It is recommended to replace it every 6-8 months, and the specific time depends on the machine prompts
6. Materials: primary gauze, composite HEPA filter paper, activated carbon layer
7. Size: about 28 x 19cm