Question about Bissell SpotClean ProHeat

Of course, it depends on the size of the sofa and how intensively you clean it. In principle, you can safely clean 4-8 fabric armchairs at a time, or a smaller sofa.

It depends on the size of the sofa. In one go, I was able to make my two sofas, one about 2.40m long and the other 1.80m.