I have cleaned carpets in Phoenix for fifteen years, eight of them running my own residential business, and the question clients ask most is not which machine to buy. It is whether one machine can do the whole house. This carpet cleaner comparison is my honest answer, built from the four products I keep in rotation: a full-size upright that does the deep work, two portables that handle everything the upright cannot reach, and the solution both of them drink. Phoenix is hard on carpet. Monsoon mud, desert dust that settles like flour, and pets that treat the hallway like a bathroom. Any machine I recommend has to survive that.
For most homes, the BISSELL Big Green Professional Carpet Cleaner is the machine that does the real work, and a portable spot cleaner covers the stairs, the couch, and the car. That is the short version. The long version is about which portable earns its shelf space, how much the solution costs you per job, and why a heavy upright that never leaves the garage is worse than a light one you actually pull out.
BISSELL Big Green Professional Carpet Cleaner, XL DirtLifter PowerBrush
The deep-clean anchor. Full-size upright with the XL DirtLifter PowerBrush, built for open rooms and real traffic lanes
Heavy, thirsty for floor space, and a job you plan a morning around
Hoover Pet Carpet Cleaner Solution, 128 Oz., Tropical Breeze Scent
The consumable that decides your cost per job. A 128 ounce bottle goes a long way when you dilute it properly
It is not a machine, and it is the line item people forget when they budget for one
Bissell Pet Stain Eraser Cordless Portable Carpet Cleaner, and car/auto detailer, 2019 Version, 20037
Cordless grab and go. The one you reach for on a fresh accident, a stair tread, or a car seat
Built for spots, not rooms. Battery power means you work in sessions
Hoover CleanSlate Plus Portable Carpet + Upholstery Spot Cleaner Machine
Corded portable that handles upholstery, stairs, and mattresses without a runtime clock
Still a spot cleaner. It will not clean a family room in one pass
Prices and availability were captured from Amazon Creators API and may change.
How I judge a carpet cleaner
My method has not changed in a decade, and it fits on an index card. I weigh the dirty-water tank before and after a pass. That number is the review, because it tells me what the machine actually pulled out of the carpet rather than what the box promised. I run a dry-time clock, because a carpet that stays damp for two days is a mold factory, not a result. And I lift the machine, fill it, and empty it myself, because weight and tank design decide how often a cleaner gets used.
That last point is the one people argue with me about. A machine that lives in the garage because it hurts your back cleans exactly zero carpets. The best cleaner in your house is the one you are willing to carry up the stairs.
Three questions decide everything for me: can I measure what it recovered, how long until the carpet is walkable, and can I empty the tank without spilling on the carpet I just cleaned. The last one eliminates more products than the first two combined.
BISSELL Big Green Professional: the deep-clean anchor
The Big Green Professional is the full-size upright in this comparison, and it is the one I would put on a whole-room job. The XL DirtLifter PowerBrush is the part that matters. A full-size brush roll driven by a full-size machine lifts more water per pass than any handheld can, and recovery is the actual cleaning power. Suction specs on a box are marketing. What comes up the wand and into the tank is the truth.
Where it earns its keep: open carpet, traffic lanes, a rental turnover, a whole downstairs after a monsoon mud event. Where it does not: a stairwell, a couch cushion, or a car interior. It is also the machine that asks something of you. You clear a morning, you fill it, you work in passes, you empty and rinse the tank, and you let the carpet dry. That is a planned job, not a reaction.
Buying advice I give everyone: buy for your biggest cleaning job, not your ideal one. If your house is mostly open carpet, the upright is the correct first purchase. If your house is mostly stairs and area rugs, it is not, and you should start with a portable and rent an upright once a year. Most people overbuy for a stairwell.
Hoover Pet Carpet Cleaner Solution: the line item nobody budgets for
The solution is part of the machine. I will say that until I am hoarse. A cheap cleaner with expensive solution is not cheap, and a good cleaner fed the wrong mix will leave residue that re-soils faster than the carpet got dirty in the first place.
This Hoover Pet formula comes as a 128 ounce bottle in Tropical Breeze scent, and it is a concentrate, which is the whole point. You measure, you dilute to the label ratio, and one bottle carries you through a lot of jobs. People who free-pour solution into a tank are the same people who complain that their carpet feels stiff a week later. Foam and residue are user error, not machine failure.
Do the math before you buy any machine. A machine that uses a cup of solution per tank and a machine that uses half a bottle per tank are not the same purchase, even at the same price. The 128 ounce size is the one to buy if you clean more than twice a year, because the per-job cost drops and you stop making special trips.
One caution from experience: match the solution to the job. A pet formula is for pet messes and general soil. It is not a stain-removal miracle, and no solution is. Some stains are furniture now. I have said that to clients for fifteen years and it has never once been wrong.
Bissell Pet Stain Eraser: cordless and fast on fresh accidents
The Pet Stain Eraser is the cordless handheld in this group, and it is a car detailer as much as a carpet tool. Its value is speed. A fresh accident is a chemistry problem that gets worse with every minute, and a machine you can grab without unwinding a cord or filling a reservoir is a machine that gets used at the moment it matters.
It is the right tool for stair treads, the landing at the top, a car seat, a trunk mat, and the small rug by the door. It is the wrong tool for a family room, and no cordless handheld should be judged against that job. Battery power means you work in sessions, and sessions are fine for spots. They are not fine for a whole-room clean.
If you have pets, this is the machine that stops a small problem from becoming a carpet replacement. Keep it charged, keep a bottle of solution near it, and treat every accident within the hour. That habit matters more than any spec sheet.
Hoover CleanSlate Plus: corded portable for upholstery and stairs
The CleanSlate Plus is the corded portable spot cleaner, and the cord is a feature, not a compromise. No battery means no runtime clock. You clean until the water in the tank tells you the upholstery is done, and you keep going on the next cushion.
This is my pick for stairs and furniture: couch cushions, the armchair the dog owns, a mattress after a kid's accident, car seats, and the carpeted edge where the vacuum never reaches. A portable with a hose and a hand tool reaches places an upright physically cannot, and upholstery is where most household dirt actually hides. People clean their carpets twice a year and their couch never.
The honest limitation is coverage. A portable spot cleaner is slow over large areas because you move it, position it, and work a small tool across the surface. For a whole room, the upright wins on time and on how much water it recovers per pass. For the twenty square feet that actually look dirty, the portable wins on access.
The trade-offs the table cannot hold
Full-size versus portable is the first trade-off, and it is not close in either direction. A full-size upright recovers more water per pass, covers more square feet per hour, and needs storage space and a strong back. A portable reaches stairs, cars, and cushions, and asks for patience instead of muscle. Most homes with carpet and stairs eventually own one of each. That is not upselling. It is the shape of the job.
Corded versus cordless is the second. Cordless buys you speed and costs you runtime. Corded buys you endurance and costs you a plug. The Pet Stain Eraser and the CleanSlate Plus are on opposite sides of that line on purpose, and the right answer depends on whether your messes are sudden or scheduled.
Weight is the third, and it is the most underrated spec in the category. A cleaner you dread hauling gets used less, and a cleaner that gets used less cleans worse than a cheap one that gets used often. I check weight the same way I check recovery, because my back is the real reviewer.
Dry time is the fourth. Everything in this comparison is a wet process. If you cannot leave the carpet alone for the hours it needs, you are not cleaning it, you are soaking it. Run a fan, keep the pets off, and wait.
Which one for which house
If you have open carpet and a busy household, start with the BISSELL Big Green Professional and add a portable later. If you have mostly stairs, area rugs, and furniture, start with the Hoover CleanSlate Plus and rent an upright once a year. If you have pets or kids and want to win the first ten minutes of an accident, the Bissell Pet Stain Eraser is the machine that lives within reach. And whatever you buy, buy the 128 ounce Hoover Pet solution and dilute it properly, because the consumable is where the real cost hides.
What I tell clients now
Two machines beat one, and neither of them is the one that matters most. The machine you actually use is the one that matters. A cordless handheld on a fresh stain beats a professional upright three days later, every single time.
Clean for the job in front of you, weigh what you pull out of the tank, and give the carpet time to dry. Do those three things and the equipment list almost sorts itself.