Everyone in this category says they tested twenty vacuums. We have not tested any, and we say so. What we do instead is read the manuals, compile the published specifications, and work out what each machine costs to run for three years — the method is written out in full.
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For carpet, buy a carpet cleaner. It is not close. A carpet cleaner — properly an extractor — sprays solution into the pile, agitates it, and vacuums the dirty liquid back out. A steam cleaner applies hot vapor and extracts nothing, so the loosened soil stays in the carpet. Both machines get called "steam cleaners" in listings, which is where the confusion and the wasted money come from.
The whole difference is one word: extraction
A carpet cleaner has two tanks and that is the tell. Bissell publishes dual tanks on the ProHeat 3588F; Hoover publishes dual tank technology on the PowerScrub Deluxe and CleanSlate Plus; Shark publishes a dual tank system on the CarpetXpert. Clean solution goes out through one, dirty water comes back through the other. That returning tank is the machine doing its job.
A steam cleaner has one tank, because nothing comes back. It heats water into vapor and delivers it through a nozzle or a padded head. On a hard sealed floor that is ideal — a pad wipes up what the vapor loosens. On carpet there is no pad passing over the fibers and nothing extracting, so the soil is loosened and then left exactly where it was.
What each machine is actually for
Matching the machine to the surface.
Surface
Carpet cleaner (extractor)
Steam cleaner or steam mop
Carpet and rugs
Yes — the entire design
No. Loosens soil and leaves it in the pile
Upholstery and sofas
Yes, with the hand tool
Fabric attachment refreshes; does not extract
Car interiors
Yes — portables excel here
Limited
Sealed hard floors
No — designed for pile
Yes, this is what a steam mop is for
Tile and grout
No
Yes, especially the scrubbing models
Mattresses
Yes, with the hand tool
Surface sanitizing only
Sanitizing without chemicals
No — it is a solution-based process
Yes: Shark and Bissell publish 99.9% claims
The one thing steam genuinely does that extraction does not
Chemical-free sanitizing. Bissell publishes that the PowerFresh 1940A kills 99.9% of germs, bacteria and viruses when used as directed. Shark publishes 99.9% of common household bacteria using water alone, with no residue. A carpet extractor cannot make that claim, because it works by putting a cleaning formula into the fibers and pulling it back out — a different mechanism with a different result.
So if what you want is a sanitized hard floor with no chemicals, the steam machine is correct and the extractor is not. The categories are complements, not competitors — the mistake is only ever using one where the other belongs. Our steam mop roundup is here.
#
Product
Best for
Score
Price
01
Bissell TurboClean PET Upright Carpet & Upholstery Cleaner (3948)The 3952 plus a 7-foot hose and a self-cleanout tool — and the tool is what makes it usable on stairs and a sofa.
Bissell Little Green Mini Portable Carpet Cleaner (4075)7 lb, 16 ounces, and a self-cleaning hose tool — the machine most people should buy before a full-size extractor.
Hoover PowerScrub Deluxe Carpet CleanerFive counter-rotating brushes, dual tanks, an 8-foot hose and a two-year warranty — the most complete kit at this price.
Bissell ProHeat 2X Revolution Pet Pro Plus (3588F)Dual brushrolls, a heater and an Express mode Bissell rates at about 30 minutes to dry — the only machine here that addresses drying time at all.
Scores are ours, from the published rubric on the How We Pick page. They are editorial judgments about published specifications — not test results. We have not handled these machines.
01 · Best for pet messes
Bissell TurboClean PET Upright Carpet & Upholstery Cleaner (3948)
The 3952 plus a 7-foot hose and a self-cleanout tool — and the tool is what makes it usable on stairs and a sofa.
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+The self-cleanout tool rinses itself in one press, which is the single most annoying job on any extractor
+7-foot hose reaches a full flight of stairs from the landing
+Same 1-gallon tank and 4-row brush as the cheaper 3952
Where it stops
−19.2 lb, nearly three pounds more than the 3952
−Still no heater
−Pet formula costs more per bottle than the standard version
Who it is for
Pet households where the messes are on stairs, sofas and pet beds as much as the floor.
Skip it if
You only ever clean flat open carpet. The hose and tools are the entire price difference and you would never unclip them.
Our score: 7.4 out of 10
Tank capacity8.5
Brush system7.5
Tools and reach8.5
Weight and handling6.0
Running cost6.5
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
02 · Best spot cleaner
Bissell Little Green Mini Portable Carpet Cleaner (4075)
7 lb, 16 ounces, and a self-cleaning hose tool — the machine most people should buy before a full-size extractor.
4" tough stain tool with a removable lens, plus the HydroRinse self-cleaning hose tool
Formula
8 oz Bissell Little Green formula included
Power
Corded electric
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+7 lb and stores in a cupboard, so it comes out for a single spill instead of waiting for a deep-clean day
+HydroRinse flushes the hose, which is the thing that makes portable extractors smell
+Handles car interiors, pet beds and upholstery as well as carpet
Where it stops
−16 ounces is a few spots, not a room
−No powered brush — you provide the scrubbing
−It is not a substitute for a full-size machine and does not claim to be
Who it is for
Almost everyone. Most carpet problems are spots, and most people buy a 20-pound machine to deal with them.
Skip it if
You want to deep clean a whole carpeted house. This is a spot machine; use it alongside a rental, not instead of one.
Our score: 6.6 out of 10
Tank capacity3.0
Brush system4.0
Tools and reach8.5
Weight and handling9.5
Running cost8.0
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
03 · Most brushes for the money
Hoover PowerScrub Deluxe Carpet Cleaner
Five counter-rotating brushes, dual tanks, an 8-foot hose and a two-year warranty — the most complete kit at this price.
8 feet, with upholstery, pet and crevice tools and a storage bag
Mixing
Auto Mix — meters the water-to-solution ratio automatically
Warranty
2-year limited
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+Five brushes attack pile from multiple angles rather than one
+Auto Mix removes the guesswork that wastes formula and leaves residue
+8-foot hose with three tools and a bag to keep them in
+2-year warranty
Where it stops
−18.5 lb and a wide 21.9-inch body — awkward on stairs and in a closet
−Five brushes means five things to clear hair out of
−Hoover formula is a permanent consumable, same as Bissell's
Who it is for
Whole-house carpet plus stairs and upholstery, where one machine has to do everything.
Skip it if
You want the lightest thing that works. This is the most machine on the page and the weight is the price of that.
Our score: 7.8 out of 10
Tank capacity8.5
Brush system9.5
Tools and reach9.0
Weight and handling5.0
Running cost7.0
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
04 · Best heated cleaner
Bissell ProHeat 2X Revolution Pet Pro Plus (3588F)
Dual brushrolls, a heater and an Express mode Bissell rates at about 30 minutes to dry — the only machine here that addresses drying time at all.
MAX Clean, and Express Clean rated to leave carpets dry in about 30 minutes
Hose
8 feet
Tools
2-in-1 pet upholstery tool and 3" tough stain tool
Pre-treatment
CleanShot pre-treater with OXY, built in
Formulas
Pro Max Clean + Protect and Pet Pro Oxy Urine Eliminator, both included
Machine weight
Not published in a comparable form on the listing
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+Dual counter-rotating brushrolls double the agitation of the single-brush machines
+A published drying-time claim, which almost nobody in this category makes
+Built-in pre-treater means you are not carrying a spray bottle around as well
+8-foot hose, the longest here
Where it stops
−Two formulas included means two formulas to keep buying
−The most expensive machine on this page
−Bissell does not publish a comparable machine weight for this model
Who it is for
Households with recurring pet accidents, where the same spots get cleaned repeatedly.
Skip it if
You clean carpets twice a year. This is a machine that repays frequent use; for occasional deep cleans, renting is the better arithmetic.
Our score: 7.6 out of 10
Tank capacity8.5
Brush system9.5
Tools and reach9.0
Weight and handling5.5
Running cost5.5
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
How to tell which one a listing is actually selling
Count the tanks. Two tanks — clean and dirty — means an extractor. One tank means steam.
Look for the word 'extraction' or 'recovery'. If the listing never mentions recovering the dirty water, it is not recovering it.
Check the surface rating. Steam machines publish "sealed hard floors". Extractors publish carpet, rugs and upholstery.
Look for a formula. Extractors are designed around a proprietary cleaning solution. Steam machines run on tap water.
If you need both
Most homes with carpet and hard floor genuinely do, and the good news is that the cheap end of both categories is genuinely cheap. A Bissell Little Green Mini at 7 lb handles carpet spots and upholstery; a Shark S1000 or S3501 handles sealed hard floors. Together they cost less than one mid-range upright extractor, and each does its own job properly.
What we cannot tell you
How much soil either machine removes from a given carpet. Only one extractor on this site names a test standard (Shark cites ASTM F2828 for the CarpetXpert) and no steam machine publishes a carpet claim at all — because they are not sold for carpet. The mechanical distinction on this page is a matter of published design, not of testing, which is why we can state it confidently.
Common questions
What is the difference between a carpet cleaner and a steam cleaner?+−
Extraction. A carpet cleaner sprays solution into the pile, agitates it, and vacuums the dirty liquid back out through a second tank. A steam cleaner applies hot vapor and recovers nothing, so on carpet the loosened soil stays in the fibers.
Can you use a steam cleaner on carpet?+−
You can apply steam to it, but nothing extracts the loosened soil, so it does not clean in any useful sense. Some steam mops ship a carpet glide for refreshing and deodorizing, which is a different job from removing dirt.
Why is professional carpet cleaning called steam cleaning?+−
Because professionals use hot water extraction and the name stuck. Those machines are extractors with powerful recovery vacuums, not domestic steam cleaners. The shared word is the source of most of the confusion in this category.
Which is better for allergies, a carpet cleaner or a steam cleaner?+−
They address different things. An extractor removes allergens from carpet by pulling them out with the liquid. A steam machine publishes bacterial sanitization claims on sealed hard floors. For a carpeted home the extractor is the tool.
How do I tell which one a product listing is selling?+−
Count the tanks. Two — clean and dirty — means an extractor. One means steam. Also check the surface rating: steam machines publish 'sealed hard floors' and extractors publish carpet, rugs and upholstery.
Sources
Manufacturer-published specifications — Every runtime, wattage, capacity, weight, filtration and warranty figure quoted on this page is the manufacturer's own published number for that model, retrieved September 1, 2026. Where a manufacturer publishes no figure, the page says 'Not published' rather than estimating one.
Sweep & Suction — How We Pick — Our published method, including the scoring rubric, the three-year running-cost formula and an explicit statement of what published specifications cannot tell you.
