In a typical busy open-plan office with a sound level of 60–65dB, the sound level inside HIGHKA pods reaches approximately 31–36dB, calculated based on a $D_{S,A}$ value of 29.4dB. This is comparable to the quiet environment of a library (30–35dB). Ambient sound is perceptible yet unobtrusive, with no dominant noise sources and no intelligible speech. The exact sound level varies according to the actual noise on your office floor: it will be around 26dB if the open workspace averages 55 dB, and roughly 36 dB at an ambient level of 65dB.