The standard aluminum honeycomb ventilation panel is composed of aluminum honeycomb assembled in extruded aluminum frames. The honeycomb with waveguide structure has high EMI screen effect and good ventilation. The standard honeycomb hole has a diameter of 3.2mm and a depth of 12.7mm. Tin or nickel plating can improve screen efficiency and environmental resistance. Double layer aluminum honeycomb ventilation panel is a standard aluminum honeycomb ventilation panel consisting of two parallel layers of aluminum honeycomb assembled in an extruded aluminum frame. The honeycomb with waveguide structure has high EMI screen effect and good ventilation. The standard honeycomb hole has a diameter of 3.2mm and a depth of 12.7mm. Tin or nickel plating can improve screen efficiency and environmental resistance. The double-layer aluminum honeycomb ventilation panel is a two-layer parallel aluminum honeycomb assembly.