Hollow corkscrews may put a cork in noisy ventilation

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And now for a bit of research that is suddenly highly relevant in today's locked-up and closed-in world: noise reduction. Does air-conditioning drive you mad? The constant hiss of sterile air?

The average building designer doesn't seem to give a damn about it. As long as water doesn't drip out of the vents and the dust is kinda-sorta filtered out" well, you've got headphones don't you?

Don't stop the hiss

It is actually surprisingly difficult to get rid of ventilation noises. Fans and airflow are noisy, and the very ducting that allows the air to flow into your office space also allows the sound in. Therefore, the easiest way to get rid of ventilation noises is to just close the air duct. More realistically, you need a baffle that damps the sound waves over a wide range of frequencies but doesn't restrict air flow.

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