What Is a Pop Filter?
Updated October 2026
A pop filter is a mesh or foam screen placed between the speaker and the microphone. It softens the rush of air from p and b sounds, which otherwise makes a loud thump.
The short version
- A pop filter diffuses the air burst from plosive sounds such as p and b.
- It sits between the mouth and the mic, a few centimetres from the mic.
- It does not reduce room noise or echo.
- A foam cover on the mic does a similar job more cheaply.
The short definition
A pop filter is a screen, usually a fine mesh or a layer of foam, placed between the speaker and the microphone. When you say a p or a b, a puff of air hits the capsule. The screen spreads that air out so the mic does not register a loud thump.
Where to put it
Place the filter a few centimetres in front of the mic, and keep the speaker about a hand’s width from the filter. Putting it too close to the mic does not help; putting it too far lets the air still reach the capsule.
What it does not do
A pop filter does not reduce hiss, room sound or echo. It only handles the air burst. For a pop that has already been recorded, see the pop removal guide.
A cheaper alternative
A foam windscreen or cover over the mic head does a similar job for many setups and takes up less space on the desk.
Fewer pops, cleaner voice
A pop filter stops the pops at the source. Tunedzy can soften a pop that slipped through.
Free tools for this
Frequently asked questions
Do I need a pop filter for every mic?
Most close-up voice recording benefits from one. A distant mic picks up fewer pops.
Can a pop filter reduce background noise?
No. It only handles the air from the mouth.
Is a foam cover enough?
Often, for voice. Mesh screens are more effective for strong plosives.
Keep going
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How to Choose a Microphone for Voice Recording
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