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We put these mean, green, cleaning machines to the test.

Four different Bissell Little Green Machines we tested sitting on a wood floor in front of two chairs

Photo:Real Simple

Enter Bissells iconic Little Green Machines, the star of dozens of before-and-after cleaning videos.

Plus, they’re portable.

Need we say more?

Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

PHOTO: Amazon

So which one isactuallythe best?

Thats where we come in.

After testing all four models ourselves, we can tell you right away that theres nowrongLittle Green.

Person carrying the Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

PHOTO: Real Simple

Theyre popular for a reason: They actually work, no matter which model you choose.

If you don’t have pets or kids, you should be just fine using this model.

Plus, it comes with an 8-ounce bottle of freshness formula.

A person cleaning stains on a chair with the Bissell Little Green Portable Carpet Cleaner

Salad dressing, however, was a bit tougher to combat, and red wine was the most difficult.

Regardless, we were pleased to have no lingering smells.

Our favorite feature, though, has to be the 3-inch tool attachment.

A person cleaning the upholstery of a chair with the Bissell Little Green Portable Carpet Cleaner

Its compact design and carrying handle make it small enough to store in most larger cabinets.

Its best for deep cleaning and tackling tougher stains, thanks to the heat technology and powerful suction.

However, this unit goes a step further, adding a 3-in-1 stair tool to the mix.

A person removing the dirty water tank from the Bissell Little Green Portable Carpet Cleaner

The clean tank capacity is 37 ounces, which is the smallest of the four models.

In terms of smell, the strong, citrus scent effectively removed (or masked) any remaining odors.

This is because the model required fewer passes and less cleaning solution than the original.

Hand cleaning stained cushion with the Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

Using this equipment proved to be just as intuitive as using the original Little Green Machine.

Unsurprisingly, the 3-inch tool attachment still prevailed as our favorite feature.

It weighs just over 9 pounds and has a carrying handle, so transport and storage are a breeze.

Hand cleaning stained carpet square with the Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

If youre tired of being tethered to the nearest outlet, the cordless Little Green is your best bet.

This model offers two cleaning modes: turbo and eco.

Turbo is more powerful and suitable for heavy-duty messes, providing 20 minutes of extra strong suction.

Person carrying the Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

Eco mode, on the other hand, operates quietly for up to 35 minutes.

Removing dirt was the easiest task, requiring just suction followed by cleaner system.

In terms of odor removal though, this model exceeded our expectations.

A person cleaning stains on a chair with the Bissell Little Green Portable Carpet Cleaner

The smells of the maple syrup and salad dressing were replaced by a fresh, lemony aroma after use.

Since this model is cordless, it runs on a lithium battery.

The tradeoff for the convenience is the limited battery life.

A person cleaning the upholstery of a chair with the Bissell Little Green Portable Carpet Cleaner

This proved to be especially frustrating in our testing, as the battery died before we were finished.

Our only grievance involves the small cap on the clean water tank, which we found easy to lose.

Plus, it got rid of stains the fastest.

A person removing the dirty water tank from the Bissell Little Green Portable Carpet Cleaner

This model amazed us with its sheer power and range.

With a 64-ounce clean tank capacity, its certainly a heavy-duty pick.

It did take a bit of effort to clean the syrup, though.

Hand cleaning stained cushion with the Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

We were also disappointed to find that the steam feature was just a stream of hot water.

While adding steam to the mix may sound daunting, this unit is fairly intuitive.

While the controls were user-friendly, we did encounter some functionality issues.

Hand cleaning stained carpet square with the Bissell 1400B Little Green Multi-Purpose Portable Carpet and Upholstery Cleaner

Despite its name, the Little Green HydroSteam isnt so little after all.

Weighing over 18 pounds, this is hands down the heaviest Little Green on our list.

We also found the shape to be a bit clunky and awkward, further limiting its portability.

BISSELL Little Green

PHOTO: Best Buy

First, we applied fresh maple syrup, red wine, and salad dressing stains to a chair cushion.

We also considered which attachments were best suited for handling each stain, experimenting with them when applicable.

We also considered whether the smells from the stains dissipated after cleaning, or if any residual odors remained.

A person cleaning the upholstery of a chair with the BISSELL Little Green ProHeat Portable Carpet Cleaner

PHOTO: Real Simple

Just as we did with the cushion stains, we used red wine remover to combat stubborn wine stains.

Finally, we cleaned the dirty water tank and machine according to the manufacturers instructions.

Questions to Consider

Is a portable cleaner like the Bissell Little Green worth buying?

A person cleaning one of the stains on the BISSELL Little Green ProHeat Portable Carpet Cleaner

A portable cleaner is useful in any cleaning arsenal, says McAllister.

Typicalcarpet or upholstery spraysrequire elbow grease, while a portable cleaner does all the hard work for you.

Which features are most important when buying a portable cleaner?

A hand holding the BISSELL Little Green ProHeat Portable Carpet Cleaner over a stain

Typically, the more features a model has, the more expensive it will be.

McAllister also suggests looking for units with a long hose, good attachment options, and maneuverability.

These machines get stinky, and some of the newer designs come with self-cleaning options, says McAllister.

A person removing the dirty water tank from the BISSELL Little Green ProHeat Portable Carpet Cleaner

Pleshek stresses the importance of finding a machine thats both easy to clean and maintain.

This can help prolong the machines longevity, too.

How much should you spend on a portable cleaner?

The BISSELL Little Green ProHeat Portable Carpet Cleaner on a dirty rug

According to McAllister, high-quality cleaning products dont have to break the bank.

She adds that Bissell models tend to be both effective and well priced for the average consumer.

The Bissell Little Greens range in price from $124-$230.

A person filling the water tank of the BISSELL Little Green ProHeat Portable Carpet Cleaner

A person cleaning the upholstery of a chair with the BISSELL Little Green ProHeat Portable Carpet Cleaner

A person cleaning one of the stains on the BISSELL Little Green ProHeat Portable Carpet Cleaner

A hand holding the BISSELL Little Green ProHeat Portable Carpet Cleaner over a stain

A person removing the dirty water tank from the BISSELL Little Green ProHeat Portable Carpet Cleaner

The BISSELL Little Green ProHeat Portable Carpet Cleaner on a dirty rug

A person filling the water tank of the BISSELL Little Green ProHeat Portable Carpet Cleaner

Bissell Little Green Cordless Portable Carpet Cleaner 3682

PHOTO: Amazon

A person holds up the Bissell Little Green Cordless Portable Carpet Cleaner 3682

PHOTO: Real Simple

A person cleaning a rug with the Bissell Little Green Cordless Portable Carpet Cleaner

A person with the Bissell Little Green Cordless Portable Carpet Cleaner on a dirty rug

A person cleaning a chair with the Bissell Little Green Cordless Portable Carpet Cleaner

A person adding fluids into the water tank of the Bissell Little Green Cordless Portable Carpet Cleaner

A person opening the dirty water tank of the Bissell Little Green Cordless Portable Carpet Cleaner

A person lifts the Bissell Little Green Cordless Portable Carpet Cleaner 3682

A person holds up the hose on the Bissell Little Green Cordless Portable Carpet Cleaner 3682

A person uses the Bissell Little Green Cordless Portable Carpet Cleaner 3682 to clean a white chair

A person holds up the Bissell Little Green Cordless Portable Carpet Cleaner 3682

A person cleaning a rug with the Bissell Little Green Cordless Portable Carpet Cleaner

A person with the Bissell Little Green Cordless Portable Carpet Cleaner on a dirty rug

A person cleaning a chair with the Bissell Little Green Cordless Portable Carpet Cleaner

A person adding fluids into the water tank of the Bissell Little Green Cordless Portable Carpet Cleaner

A person opening the dirty water tank of the Bissell Little Green Cordless Portable Carpet Cleaner

A person lifts the Bissell Little Green Cordless Portable Carpet Cleaner 3682

A person holds up the hose on the Bissell Little Green Cordless Portable Carpet Cleaner 3682

A person uses the Bissell Little Green Cordless Portable Carpet Cleaner 3682 to clean a white chair

Bissell Little Green HydroSteam Pet Portable Carpet Cleaner

PHOTO: Bissell

The Bissell Little Green HydroSteam Pet Carpet Cleaner on a cleaned rug

PHOTO: Real Simple

A person cleaning the upholstery of a chair with the Bissell Little Green HydroSteam Pet Carpet Cleaner

A person adding liquid to the water tank of the Bissell Little Green HydroSteam Pet Carpet Cleaner

A close-up of a hand using the Bissell Little Green HydroSteam Pet Carpet Cleaner on a chair

The Bissell Little Green HydroSteam Pet Carpet Cleaner cleaning a tile floor

A person removing the dirty water tank from the Bissell Little Green HydroSteam Pet Carpet Cleaner

A hand turning a nob on the Bissell Little Green HydroSteam Pet Carpet Cleaner

A person cleaning with the Bissell Little Green HydroSteam Pet Carpet Cleaner next to a person cleaning with another model

A person holding the Bissell Little Green HydroSteam Pet Carpet Cleaner over a stained chair

The Bissell Little Green HydroSteam Pet Carpet Cleaner on a cleaned rug

A person cleaning the upholstery of a chair with the Bissell Little Green HydroSteam Pet Carpet Cleaner

A person adding liquid to the water tank of the Bissell Little Green HydroSteam Pet Carpet Cleaner

A close-up of a hand using the Bissell Little Green HydroSteam Pet Carpet Cleaner on a chair

The Bissell Little Green HydroSteam Pet Carpet Cleaner cleaning a tile floor

A person removing the dirty water tank from the Bissell Little Green HydroSteam Pet Carpet Cleaner

A hand turning a nob on the Bissell Little Green HydroSteam Pet Carpet Cleaner

A person cleaning with the Bissell Little Green HydroSteam Pet Carpet Cleaner next to a person cleaning with another model

A person holding the Bissell Little Green HydroSteam Pet Carpet Cleaner over a stained chair

A close-up of the Bissell Little Green HydroSteam Pet Carpet Cleaner cleaning a rug next to another model

Real Simple

A person cleaning a chair with multiple stains with the BISSELL Little Green ProHeat Portable Carpet Cleaner

Real Simple