If you need a compact cleaner for pet accidents, stained upholstery, carpeted stairs, area rugs, or vehicle seats, the BISSELL Little Green range gives you three useful but different options. The classic Little Green 1400B is the best all-around choice for larger spot-cleaning jobs, the lighter Little Green Max Pet SmartMix 38572 adds automatic formula mixing and pet-hair tools, and the Little Green Pet Deluxe 3353 is the strongest fit for containing unpleasant liquid pet messes. This side-by-side comparison explains the tank sizes, tools, weight, mixing method, and best use case for each portable carpet and upholstery cleaner.
Last updated: August 3, 2026 — model specifications, included-tool guidance, surface cautions, affiliate links, and buyer recommendations were reviewed.
Affiliate disclosure: This article contains Amazon affiliate links. We may earn a commission from qualifying purchases at no additional cost to you.
Quick verdict:
- Best overall: Little Green 1400B — choose it for larger tanks, straightforward controls, and versatile home or vehicle spot cleaning.
- Best for convenience: Max Pet SmartMix 38572 — choose it for lighter weight, automatic formula mixing, rinse and cleaning modes, and pet-hair cleanup tools.
- Best for liquid pet accidents: Pet Deluxe 3353 — choose it for the Stain Trapper Tool and a pet-focused accessory bundle.
Quick Comparison of BISSELL Little Green Portable Cleaners
| Model | Best For | Tank Capacity | Weight | Key Tools or Feature | Amazon |
|---|---|---|---|---|---|
| Little Green 1400B | Versatile home and auto spot cleaning | 48 oz clean / 45 oz dirty | About 9.65 lb | 3-inch stain tool, spraying crevice tool, and HydroRinse tool | Check Price on Amazon |
| Max Pet SmartMix 38572 | Easy mixing, lighter carrying, and pet-hair cleanup | 32 oz clean / 32 oz dirty | About 8.2 lb | SmartMix, self-cleaning stain tool, and specialized pet-hair tool | Check Price on Amazon |
| Pet Deluxe 3353 | Urine, spills, and other liquid pet messes | 48 oz clean / 45 oz dirty | About 9.7 lb | Stain Trapper, 3-inch stain tool, and HydroRinse tool | Check Price on Amazon |
Specifications and included accessories can change by package or retailer. Confirm the exact model number and current package contents on the Amazon listing before ordering.
BISSELL Little Green Portable Carpet Cleaner (1400B)
The BISSELL Little Green 1400B is the most balanced choice when you want a simple portable spot cleaner for carpet stains, couches, stairs, pet beds, area rugs, and vehicle interiors. Its 48-ounce clean-water tank and 45-ounce dirty-water tank provide more capacity than the Max Pet SmartMix, making it better suited to a full couch, a set of stairs, or several vehicle seats in one cleaning session.
The package linked in this article includes a 3-inch Tough Stain Tool, a Spraying Crevice Tool, and a HydroRinse self-cleaning hose tool. The crevice tool is especially useful around seat seams, furniture edges, and other narrow areas that a wider stain tool may not reach.
Why You’ll Like It
The controls are straightforward: fill the clean tank with warm tap water and an approved portable-machine formula according to the fill lines, spray the stained area, gently agitate it with the selected tool, and extract the dirty solution into the separate recovery tank. There is no automatic formula-mixing system, but the simple setup may appeal to buyers who prefer a familiar process and larger tanks.
Best For: Households that want one versatile portable carpet and upholstery cleaner for routine spills, stains, stairs, furniture, and car interiors.
Who Should Avoid It: Buyers who want the lightest model, automatic formula mixing, or a specialized pet-hair attachment.
Pros:
- Large 48-ounce clean-water and 45-ounce dirty-water tanks.
- Includes tools for common stains, narrow spaces, and hose rinsing.
- Works well as a general-purpose home and vehicle spot cleaner.
- Approximately 15-foot power cord provides useful working reach.
Cons:
- Water and formula must be added manually according to the tank markings.
- Heavier and larger than the Max Pet SmartMix model.
- Designed for spots and smaller areas rather than routine whole-room carpet cleaning.
BISSELL Little Green Max Pet SmartMix Carpet Cleaner (38572)
The BISSELL Little Green Max Pet SmartMix 38572 is the easiest model here for buyers who do not want to measure formula before every cleaning job. Its SmartMix system automatically combines formula and water, and the machine provides a water-only rinse mode and a formula-and-water cleaning mode.
At approximately 8.2 pounds, it is lighter than the other two models. It uses separate 32-ounce clean- and dirty-water tanks, so it is easier to carry between rooms or out to a vehicle, although the smaller tanks may require more frequent filling and emptying during larger jobs.
Why You’ll Like It
The package includes a self-cleaning Tough Stain Tool and a specialized pet-hair removal attachment. The stain tool can be configured for everyday soft-surface cleaning or embedded pet hair and debris, while the separate pet-hair tool gives pet owners another option before wet extraction.
Best For: Pet owners who value lighter weight, automatic formula mixing, simple mode selection, and tools intended for stains and pet hair.
Who Should Avoid It: Buyers who prefer larger tanks, want the Stain Trapper Tool, or regularly clean several large upholstered surfaces in one session.
Pros:
- SmartMix automatically combines formula and water.
- Lightest cleaner in this three-model comparison.
- Includes tools for stain extraction and pet-hair pickup.
- Rinse and cleaning modes make it easier to switch between water-only flushing and formula use.
Cons:
- Smaller 32-ounce tanks may require more stops during larger jobs.
- Preset SmartMix operation offers less freehand control than manually choosing a custom mixture.
- It remains a portable spot cleaner rather than a full-size carpet-cleaning machine.
BISSELL Little Green Pet Deluxe Portable Carpet Cleaner (3353)
The BISSELL Little Green Pet Deluxe 3353 is the strongest match for buyers who frequently clean urine, muddy water, tracked-in dirt, vomit, or other liquid pet accidents. It shares the classic Little Green’s large 48-ounce clean-water and 45-ounce dirty-water capacities but comes with a more pet-focused accessory package.
The key difference is the Stain Trapper Tool. This attachment keeps suctioned liquid inside a removable tool container instead of immediately sending the entire mess through the cleaner’s hose. That can make cleanup more manageable after unpleasant pet accidents. The package also includes a 3-inch Tough Stain Tool, HydroRinse hose tool, trial-size PET Spot and Stain formula, and trial-size PET OXY Boost.
Why You’ll Like It
The Pet Deluxe combines larger tanks with tools intended for routine stains, hose rinsing, and liquid-mess containment. At approximately 9.7 pounds, it is still portable enough to carry between rooms or out to a vehicle, although it is not as light as the Max Pet SmartMix.
Best For: Homes with puppies, senior pets, or animals that regularly create liquid carpet, rug, upholstery, or pet-bed messes.
Who Should Avoid It: Buyers whose main concern is loose pet hair, who want automatic formula mixing, or who rarely need the Stain Trapper Tool.
Pros:
- Stain Trapper Tool helps contain unpleasant liquid messes inside the attachment.
- Large clean- and dirty-water tanks reduce interruptions.
- Includes a standard stain tool, hose-rinsing tool, and trial pet formulas.
- Suitable for approved carpets, stairs, area rugs, upholstery, pet beds, and vehicle interiors.
Cons:
- Water and formula must be added manually according to the tank markings.
- Heavier than the Max Pet SmartMix.
- Does not provide the Max Pet model’s automatic formula-mixing convenience.
Factors to Consider When Choosing a BISSELL Little Green
These three machines use a similar spray, agitate, and suction process, but their tank sizes, accessories, weight, and formula systems make them better suited to different buyers.
Tank Capacity
The 1400B and Pet Deluxe provide 48-ounce clean-water and 45-ounce dirty-water tanks. They are better suited to cleaning several spots, a couch, stairs, or multiple car seats in one session. The Max Pet SmartMix uses smaller 32-ounce tanks, which reduce the machine’s weight but may require more frequent stops.
Manual or Automatic Formula Mixing
The Max Pet SmartMix automatically combines cleaning formula and water and lets you select a water-only rinse mode or a formula-and-water cleaning mode. The 1400B and Pet Deluxe require you to add water and formula according to their marked fill lines. Always follow the exact tank and formula directions for your model rather than estimating the amount.
Included Tools
Choose tools according to the messes you clean most often:
- Spraying Crevice Tool: Useful for narrow upholstery seams, furniture edges, and vehicle interiors.
- Pet-Hair Removal Tool: Better for homes where loose or embedded fur is a major concern.
- Stain Trapper Tool: Useful for containing liquid pet accidents inside a removable attachment.
- HydroRinse Tool: Helps rinse residue from the machine’s hose after use.
- Tough Stain Tool: The standard attachment for spraying, agitating, and extracting common spots.
Weight and Storage
The 8.2-pound Max Pet SmartMix is the easiest model here to carry. The 1400B and Pet Deluxe weigh about 9.7 pounds and have larger tanks. Check the product dimensions and measure your storage shelf or closet before buying, especially if space is limited.
Spot Cleaner Versus Full-Size Machine
Little Green machines are designed for spills, stains, upholstery, stairs, pet beds, area rugs, and vehicle interiors. They can clean sections of carpet, but their narrow hand tools make them inefficient for routinely cleaning an entire room. A full-size upright carpet cleaner or rental machine is more suitable for regular wall-to-wall deep cleaning.
Surface Compatibility
Do not assume every carpet, rug, or upholstery fabric can be wet cleaned. Check the item’s care label and the cleaner’s instructions before use. For upholstery, BISSELL identifies many fabrics labeled W or WS as suitable for water-based cleaning, but you should still test the formula on a hidden area first. Avoid water-sensitive fabrics, unstable dyes, delicate rug backings, and vehicle components that prohibit wet cleaning.
Important: Do not oversaturate carpet, cushions, pet beds, or vehicle seats. Use several slow suction-only passes after spraying to remove as much moisture as possible, keep liquid away from electrical components, and allow the area to dry fully.
Cleaning and Maintenance
Empty both tanks after each use. Rinse the dirty tank, lid, float components, hose, and tools according to the user guide, then let removable parts dry before reassembly. Prompt cleaning is especially important after urine, vomit, or other organic pet messes because residue can create odors inside the attachment, hose, or recovery tank.
Cleaning Formula
Use a BISSELL formula labeled for portable carpet-cleaning machines. Formula benefits such as odor treatment, urine removal, OXY cleaning, or stain protection come from the selected solution rather than from the machine alone. Do not add bleach, dish soap, or other unapproved household cleaners to the tank.
Which BISSELL Little Green Should You Buy?
- Buy the 1400B when you want the best balance of larger tanks, versatile tools, and simple operation.
- Buy the Max Pet SmartMix 38572 when carrying weight, automatic mixing, and pet-hair cleanup matter most.
- Buy the Pet Deluxe 3353 when liquid pet accidents are your main problem and mess containment is worth prioritizing.
Before You Buy
- Confirm the exact model number shown in the Amazon listing.
- Check the current list of included tools and trial formulas.
- Decide whether larger tanks or lighter weight matter more.
- Choose SmartMix only when automatic formula mixing and selectable modes are valuable to you.
- Choose the Pet Deluxe when liquid-mess containment is a priority.
- Check your carpet, rug, upholstery, pet-bed, or vehicle-fabric care label before wet cleaning.
- Review the current manufacturer warranty terms and save your receipt.
How We Compared These Models
These recommendations are based on current published model specifications, tank capacity, machine weight, included accessories, formula-mixing method, intended surfaces, and the cleaning problem each model is designed to solve. No claim of personal hands-on testing is made, and retailer bundles may differ.
Readers can also review the manufacturer’s current specifications for the Little Green 1400B, Max Pet SmartMix 38572, and Pet Deluxe 3353.
Frequently Asked Questions
Can a BISSELL Little Green Clean Upholstery and Car Interiors?
Yes, these machines are intended for many water-safe upholstery fabrics and vehicle interiors. Check the fabric care label first, test a hidden area, and avoid soaking foam cushions, seat controls, sensors, wiring, or other electrical components.
What Types of Stains Can a Little Green Remove?
A Little Green can help extract common spots such as muddy paw prints, food spills, tracked-in dirt, coffee, and pet accidents. Results depend on the stain, how long it has been present, the surface material, and the cleaning formula used. Permanent dye loss, bleach marks, and physically damaged fibers cannot be restored by extraction cleaning.
Is the Little Green Good for Pet Urine?
It can extract fresh urine and cleaning solution from water-safe carpets and upholstery. Blot excess liquid first, use an approved pet formula, avoid oversaturating the padding, and make several suction-only passes. Old or repeated urine contamination may extend into carpet padding, subflooring, cushion foam, or other hidden material and may require deeper treatment or professional cleaning.
Which BISSELL Little Green Has the Largest Tanks?
The Little Green 1400B and Pet Deluxe 3353 both have 48-ounce clean-water tanks and 45-ounce dirty-water tanks. The Max Pet SmartMix 38572 has smaller 32-ounce clean- and dirty-water tanks but is also the lightest model in this comparison.
Which Model Is Easiest to Use?
The Max Pet SmartMix 38572 is the easiest choice for buyers who want automatic formula mixing and simple rinse or cleaning modes. The 1400B and Pet Deluxe use a more traditional fill-and-measure process but provide larger tanks.
Can It Clean an Entire Carpeted Room?
It is technically possible to clean sections of carpet, but the small hand tool makes whole-room cleaning slow. Little Green machines are best treated as portable spot and upholstery cleaners. Use a full-size upright carpet cleaner for regular wall-to-wall cleaning.
Is It Safe for Every Carpet and Fabric?
No. Compatibility depends on the carpet, rug backing, upholstery fabric, dyes, adhesives, padding, and care instructions. Check the care label and test an inconspicuous area before cleaning. Do not wet clean surfaces labeled as water-sensitive.
How Often Should the Machine Be Used?
Use it when spills and stains occur rather than following a fixed schedule. Prompt treatment gives many stains less time to set. Routine whole-room carpet cleaning should be handled separately according to the carpet manufacturer’s care guidance.
How Do You Clean the Hose After Use?
Use the supplied HydroRinse or self-cleaning tool when included, following the model’s instructions. Empty and rinse the tanks and tools afterward, then let all removable parts dry before storage.
Does the BISSELL Little Green Come With a Warranty?
BISSELL publishes warranty information for these models, but the coverage period and terms should be confirmed for the exact model, package, country, and seller before purchase. Keep the receipt and follow the manufacturer’s registration and maintenance instructions.
Conclusion
The best BISSELL Little Green depends on the messes you face most often. The Little Green 1400B is the best overall option for buyers who want larger tanks, simple controls, and broad home or vehicle versatility. The Max Pet SmartMix 38572 is easier to carry and removes the need to measure formula manually. The Pet Deluxe 3353 is the better fit for frequent liquid pet accidents because its Stain Trapper Tool helps keep unpleasant messes contained in the attachment.
Final recommendation: Choose the 1400B for the best all-around balance, the Max Pet SmartMix for convenience and pet-hair tools, or the Pet Deluxe for liquid-mess containment.
Before ordering, check the current Amazon listing to confirm the model number, included accessories, warranty information, and availability.
