Surface cleaning refers to the use of accessories connected to the suction tube to suck the material and transport it to a collection container located in front of or below the filter device.
When choosing a vacuum cleaner for cleaning, you need to know the detailed specifications of the material to be sucked.

The choice of vacuum cleaner specifications and models depends on the properties of the suction material and the requirements of the application environment.
Lighter and finer dust require lower negative pressure value and general average air volume, but often require larger filter devices or even special filter devices.
The heavier suction material requires a higher negative pressure value.
The proportion of fine powder contained in each absorbed substance or even heavier substances (such as sandblasting) must be taken into account.