HIGHKA pods achieve 29.4 dB DS,A noise reduction, certified to ISO 23351-1 — independently verified under the international standard for office pod acoustic performance. A well-constructed partitioned room with acoustic treatment will typically achieve higher absolute isolation than a pod. However, for the primary use cases that drive private space demand in open-plan offices — individual calls, video meetings, focused work, and small group discussions — This certified level of noise reduction is sufficient to provide meaningful speech privacy for individual calls, video meetings, focused work, and small group discussions.