What is a filter in a micro oven?

In a microwave oven, a filter is a component that helps to eliminate odors, grease, and smoke from the air, particularly in over-the-range models. It typically consists of charcoal or metal mesh and is designed to capture particles and impurities before air is recirculated back into the kitchen. Regular cleaning or replacement of these filters is essential for maintaining optimal performance and efficiency of the microwave.