Noise from Machines - Enclosures and Sound Pressure Level Reductions

Barriers and enclosures to reduce noise sound pressure levels from machines.

Enclosure Types and Sound Pressure Level Reductions

The noise levels from machines can be reduced with barriers or enclosures. Select an enclosure type to see the sound pressure level reduction in dBA.

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Sound Pressure Level Reduction-- dBA
Reduced Noise Level-- dBA
Type of EnclosureDescriptionSound Pressure Level Reduction (dBA)
1No enclosure or barrier, machine alone0
2Machine on vibration isolators≈ 2
3Machine with barrier≈ 5
4Machine in a rigid and sealed enclosure≈ 20 - 25
5Machine in a rigid and sealed enclosure with sound absorption lining on inside walls - machine on vibration mounts≈ 40 - 45
Noise from Machines - Enclosures and Sound Pressure Level Reductions | MEPKit Engineering Tools | MEPKit