Dad’s short answer: Yes, using the hand tool rather than the floor head — and it's one of the most useful things these machines do. The cautions that matter are wool rugs, color bleed, and anything with a jute or natural backing.

Always test first

Pick a hidden spot — under a couch cushion, the corner of a rug that sits under furniture, the back of a chair. Apply the solution, work it lightly, blot with a white cloth, and look at the cloth. Color on the cloth means the dye is moving, and that rug or fabric is not a candidate for wet cleaning.

This takes two minutes and it's saved more rugs than any other advice in this category. Bright, saturated colors and hand-made rugs are the highest risk.

Also check the tag. Some upholstery is coded for solvent cleaning only, and water will mark it.

What to be careful with

Wool. It can felt, shrink and lose its finish with heat and aggressive agitation. Cool water, gentle tools, minimal moisture — or leave a valuable wool rug to a professional.

Natural backings like jute, which can shrink and can bleed brown into the face of the rug as it dries. This is where over-wetting does the most damage.

Anything that can't dry quickly. An upholstered piece you've over-wet holds moisture in the foam for days.

And use the right tool. A stiff carpet brush on delicate upholstery will fuzz it. Most machines include a softer fabric tool for exactly this — use that one.

Done carefully, though, upholstery and rug cleaning is where these machines quietly earn most of their keep.

Dad’s Take: Test a hidden corner with a white cloth before you touch a good rug. Two minutes saves a rug you can't replace.