pop filter

a screen or shield used with a microphone to reduce plosive sounds and wind noise during recording

A pop filter is a device used in recording studios to reduce or eliminate sharp bursts of air that occur when pronouncing certain consonants, such as "p" and "b." It typically consists of a mesh screen mounted on a frame that is placed between the microphone and the speaker. The pop filter helps to prevent these explosive sounds from causing distortion or unwanted noise in the recording, resulting in clearer and more professional audio.