People have long used foliage to reduce noise and create more peaceful environments.

Homeowners who live on busy streets plant trees or shrubs to block traffic noises, and people escape to forests when they’re looking for peace and quiet.

The same principles apply with moss walls. Vegetation naturally blocks high-frequency sounds while the supporting structure diminishes low-frequency noises.

Some studies have shown that plants can reduce ambient noises in offices by as much as 5 decibels.