Besides the mesh shape, the spacing and thickness of the fan grille also directly affect the fan's noise level.
Key Parameter Analysis
Mesh spacing too small → Increases air resistance, leading to increased fan load and noise.
Moderate mesh spacing → Maintains smooth airflow, reduces turbulence, and lowers noise.
Fan grille too thick → May reflect airflow, increasing fan resonance noise.
A mesh spacing of 3-5mm is recommended to reduce air resistance and noise.
