Honeycomb, honeycomb filter, honeycomb grille, honeycomb waveguide, screened air grille, radar grille, ventilation grille, vent panels and more. There are many different names and concepts for this filter.
The purpose of this product is to allow air to pass through or out of different spaces in a screening environment.
To achieve maximum RF attenuation, the ratio of thickness to cell diameter should be 4:1. Preferably more.
These are available in different materials such as aluminum, steel or stainless steel.
They also come in different types of frames, dimensions and shapes.
Read more about honeycomb air grilles.