The 45 degree cross cut diversion port can increase the ventilation range and improve indoor air quality,so that you can feel fresh air at any time. The panel adopts fashionable grille design and is suitable for installation in various places.Smooth line design makes the ventilation more stronger and more complete. The panel is made of high-quality PP Flame retardant material with good flame retardancy and high temperature resistance. Large wind wheel with wide air duct . Large air volume,low noise and high efficiencyHigh speed copper motor. High temperature resistance,no deformation and long service life. Unequal distance wind turbine blades release more air volume,which can remove indoor dirty air,moisture and smoke faster.