Filters come in many forms, but the perforated surface you're describing is a key characteristic. Here are some common types:

* Strainer: A simple, often mesh-like filter with large perforations used for removing larger impurities like seeds or chunks.

* Sieve: Similar to a strainer but typically has finer perforations for removing smaller particles.

* Colander: A kitchen tool with large perforations used to drain liquids from foods.

* Coffee filter: A paper filter with tiny perforations to trap coffee grounds.

* Air filter: A filter used in vehicles and other machines to trap dust and other particles from the air.

Let me know if you have more details about the specific type of filter you are looking for, and I can give you a more precise answer.