How to totally seal a standard air vent
Standard air vents allow noise, like a downstairs neighbor's television, to travel clearly between floors. You can block this sound by safely covering and totally sealing the standard-sized vent opening.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Using a window and an exhaust fan vented outsideDid this help you?
- 2Using a white noise machineDid this help you?
- 3Rearranging furniture to move your bed away from the ventDid this help you?
- 4Placing sound deadening foam over the vent only when the heat is turned offDid this help you?
- 5Speaking directly to the neighbor or landlord about the noiseDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“The guy below me just moved in and I can hear his tv super clearly through this vent. Looking for suggestions on how to safely cover it to block some sound.”source ↗
“I want to totally seal this vent. Standard air vent size. How do i do that?”source ↗
Where this came up
People with this problem also raised
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- 3Why is ice building up on my furnace exhaust?