A dB vacuum (decibel vacuum) refers to the measurement of vacuum strength or the level of suction in terms of decibels (dB). It is commonly used to describe the efficiency of vacuum systems, such as Vacuum Sound cleaners, industrial vacuum pumps, or other suction-based devices.

In this context, the decibel scale is a logarithmic unit used to express the ratio of a value (in this case, suction power) to a reference level. The stronger the vacuum, the higher the dB measurement. However, dB is often used to describe sound intensity or power in acoustics, but when used for a vacuum, it typically describes the effectiveness of the vacuum's suction capability.

To clarify, dB is not a direct measure of suction force or pressure but is more about comparing the relative vacuum levels. High dB values indicate a stronger vacuum, while lower dB values point to weaker suction power.