In what situations should the cooker hood filter mesh be replaced instead of cleaned?

Damage or Deformation: If the filter mesh shows signs of obvious damage, bending, or deformation, it may affect its function and the efficiency of the range hood. In such cases, it should be replaced.

Inability to Clean Thoroughly: If the grease and dirt on the filter mesh are too stubborn and cannot be removed even after multiple cleanings, replacement may be necessary.

Rust or Corrosion: If a metal filter mesh shows signs of rust or corrosion, it may affect its structural integrity and filtering performance.

Persistent Odor: If there is a persistent odor on the filter mesh that cannot be removed even after cleaning, it may indicate that grease has penetrated deep into the mesh, requiring a replacement.

Reduced Filtration Performance: If you notice a significant decrease in the filtration effectiveness of the range hood and the kitchen air is not being effectively cleared of smoke, it may be time to replace the filter mesh.

End of Service Life: Every filter mesh has an expected service life. If the filter has reached the end of its service life, it is best to replace it to ensure optimal performance.

Structural Looseness After Multiple Cleanings: If the filter mesh becomes structurally loose or the mesh holes enlarge after multiple cleanings, it may affect its filtering capability.