Question about Bissell SpotClean Professional

Theoretically, of course, you can also "dry vacuum", but an extra pipe is integrated into the round suction hose, through which the water (with cleaner) is pumped so that it can be sprayed with the cleaning brushes.
And beware, as the spray vacuum cleaner expects water and loosened dirt, there is no dust bag, no cyclone filter and no hepa filter, which other hoovers offer.
--> So no

It's not a hoover.
It's a wet vacuum cleaner.
It is far too loud for daily use.

Hardly... how is the water supposed to get to the brush? If so, then the manufacturer should offer such an extension.