If you need a compact machine for pet accidents, muddy paw prints, upholstery spills, stairs, or car interiors, the best choice depends on tank size, weight, tools, and how much measuring you want to do. This guide compares three current BISSELL portable carpet cleaners from the original product list: the Little Green Pet Pro 3909, Little Green Max Pet SmartMix 38572, and Little Green Pet Deluxe 3353. These are portable spot cleaners, not full-size machines for washing an entire room of wall-to-wall carpet.
Affiliate disclosure: As an Amazon Associate, we may earn from qualifying purchases at no extra cost to you.
How we chose: We compared current model specifications, tank capacity, weight, cleaning reach, included tools, maintenance convenience, and the surfaces each machine is designed to clean. These recommendations are based on product information and buyer-use fit, not claimed hands-on laboratory testing.
Quick Verdict
Best Overall: BISSELL Little Green Pet Pro 3909 — the strongest all-around option here for frequent pet messes, with larger clean and dirty tanks, a 5-foot hose, and three useful cleaning tools.
Best for Easy Formula Mixing: BISSELL Little Green Max Pet SmartMix 38572 — a lightweight choice that automatically mixes water and cleaning formula.
Best Compact Value: BISSELL Little Green Pet Deluxe 3353 — a proven, easy-to-store model with a 48-ounce clean tank and a practical set of stain and hose-rinsing tools.
Quick Comparison
| Model | Best For | Weight | Tank Capacity | Key Advantage | Amazon |
|---|---|---|---|---|---|
| Little Green Pet Pro 3909 | Frequent pet messes and larger spot-cleaning jobs | 11 lb | 64 oz clean / 48 oz dirty | Large tanks and three specialized tools | Check Price |
| Little Green Max Pet SmartMix 38572 | Fast setup and no-measure formula mixing | 8.2 lb | 32 oz clean / 32 oz dirty | SmartMix automatic mixing | Check Price |
| Little Green Pet Deluxe 3353 | Compact storage, upholstery, and occasional spills | 9.7 lb | 48 oz clean / 45 oz dirty | Stain Trapper and hose-rinsing tools | Check Price |
BISSELL Little Green Pet Pro Portable Carpet Cleaner 3909
The BISSELL Little Green Pet Pro 3909 is the most capable all-around machine in this comparison. Its 64-ounce clean tank and 48-ounce dirty tank let you work through several spots, a sofa section, or vehicle upholstery with fewer stops than the smaller models. The 5-foot hose improves access around stairs, cushions, pet beds, and car seats.
Its tool set is especially useful for homes with pets. The self-cleaning tough stain tool handles normal spot extraction, the pet hair tool helps loosen embedded hair and debris, and the spraying crevice tool reaches narrow gaps around cushions and vehicle seats. At 11 pounds, it remains portable, although it is not the lightest option here.
Why You’ll Like It: It balances tank capacity, reach, portability, and tool variety better than the other models in this guide.
Who Should Buy This: Pet owners who clean accidents, upholstery, stairs, pet beds, or vehicle interiors regularly and want fewer tank refills.
Who Should Avoid This: Buyers who need the smallest possible machine or only clean very occasional, palm-sized spills.
Pros:
- Large clean and dirty tanks reduce interruptions.
- Includes tools for stains, pet hair, and tight crevices.
- Five-foot hose helps reach furniture, stairs, and car interiors.
- Three-year limited warranty provides longer coverage than the Pet Deluxe model.
Cons:
- Heavier than the two smaller machines in this comparison.
- Corded design still requires a nearby outlet.
- Designed for spots and smaller areas, not full-room carpet washing.
BISSELL Little Green Max Pet SmartMix Portable Carpet Cleaner 38572
The BISSELL Little Green Max Pet SmartMix 38572 is a strong choice when simple setup matters most. Its SmartMix technology automatically combines water and cleaning formula, which removes the need to measure the mixture manually. That is helpful for quick cleanups when you want to fill the machine and start working with fewer steps.
At 8.2 pounds, it is the lightest model in this comparison. Its separate 32-ounce clean and dirty tanks keep fresh solution apart from recovered water. The included self-cleaning stain tool helps rinse residue from the tool and hose pathway, while the pet hair tool is useful on upholstered furniture, stairs, and pet beds.
Why You’ll Like It: It combines low weight, automatic formula mixing, and practical pet-cleaning tools in a compact body.
Who Should Buy This: Anyone who values quick setup, lighter carrying weight, and easy cleanup after small-to-medium pet messes.
Who Should Avoid This: Buyers who prioritize maximum tank capacity and want to clean several large areas before refilling.
Pros:
- SmartMix automatically blends water and cleaning formula.
- Lightweight 8.2-pound design is easy to carry and store.
- Separate clean and dirty tanks support a cleaner workflow.
- Self-cleaning stain tool simplifies post-use rinsing.
Cons:
- Smaller 32-ounce tanks require more frequent filling on larger jobs.
- Corded operation limits use away from electrical outlets.
- Automatic mixing may be unnecessary for buyers who prefer manual control.
BISSELL Little Green Pet Deluxe Portable Carpet Cleaner 3353
The BISSELL Little Green Pet Deluxe 3353 is a practical option for buyers who want a familiar portable cleaner without the larger body of the Pet Pro. It weighs 9.7 pounds and has a 48-ounce clean tank plus a 45-ounce dirty tank, giving it a useful middle ground between the other two models.
The 3-inch tough stain tool is suited to routine carpet and upholstery spots. The Stain Trapper tool keeps liquid messes inside the removable tool chamber instead of drawing all of the debris through the machine, and the HydroRinse tool helps flush the hose after cleaning. This model works well for apartments, vehicle interiors, sofas, stairs, and occasional pet accidents.
Why You’ll Like It: It offers a balanced tank size, compact footprint, and useful maintenance tools without unnecessary complexity.
Who Should Buy This: Buyers who want an easy-to-store spot cleaner for occasional carpet, upholstery, and auto-interior cleaning.
Who Should Avoid This: Homes with frequent large pet messes that would benefit from the Pet Pro’s larger tanks and expanded tool set.
Pros:
- Compact and manageable 9.7-pound design.
- 48-ounce clean tank offers useful capacity for routine jobs.
- Stain Trapper tool helps isolate messy liquid debris.
- HydroRinse tool makes hose maintenance easier.
Cons:
- One-year limited warranty is shorter than the Pet Pro 3909 warranty.
- Not as light as the Max Pet SmartMix model.
- Still intended for spot cleaning rather than complete room cleaning.
How to Choose a Portable Carpet Cleaner for Pet Stains
A portable extractor should match the size and frequency of the messes you actually clean. The strongest or largest model is not automatically the best choice for every home. Use the following points to compare the three machines.
Tank Capacity and Cleaning Size
Larger tanks reduce refill and emptying stops. Choose the Pet Pro 3909 if you regularly clean several stains, a large couch section, multiple car seats, or repeated pet accidents. The 32-ounce tanks on the Max Pet SmartMix are better suited to fast, focused cleanups. The Pet Deluxe sits between them with a 48-ounce clean tank.
Weight and Portability
Weight matters when you carry a cleaner between floors, out to a vehicle, or around furniture. The Max Pet SmartMix is the lightest option at 8.2 pounds. The Pet Deluxe is still easy to carry at 9.7 pounds, while the 11-pound Pet Pro trades a little extra weight for larger tanks and more tools.
Tools and Pet-Mess Control
For embedded hair and narrow gaps, the Pet Pro 3909 has the most flexible tool set. The Max Pet SmartMix also includes a pet hair tool and a self-cleaning stain tool. The Pet Deluxe is especially useful for liquid accidents because its Stain Trapper tool keeps much of the mess inside the removable attachment.
Mixing and Setup
The Max Pet SmartMix is the easiest option if you dislike measuring formula. The other models use fill lines or measured amounts. Always follow the machine manual and use a cleaning formula labeled for portable carpet cleaners; excessive soap or an incompatible product can create residue or machine problems.
Surface Compatibility
These machines are designed for water-safe soft surfaces such as many carpets, rugs, stairs, pet beds, vehicle fabrics, and upholstery. Before cleaning furniture, check the manufacturer’s care label. A “W” or “WS” code generally indicates compatibility with water-based cleaning, while “S” or “X” surfaces should not be treated with a water-extraction machine. Test a hidden area first and avoid oversaturating cushions or carpet backing.
Portable Spot Cleaner vs. Full-Size Carpet Cleaner
Portable carpet cleaners are best for stains, spills, stairs, furniture, and vehicle interiors. They are slower and less convenient for washing an entire carpeted room. For wall-to-wall deep cleaning, use a full-size upright carpet cleaner or a rental machine designed for larger floor areas.
Before You Buy
- Confirm that the product listing matches the exact model number shown in this guide.
- Check the included tools because bundles can differ by retailer.
- Measure your storage space and consider the filled weight, not only the empty weight.
- Review the upholstery care tag before using water-based extraction.
- Rinse the tanks, hose, and tools after every cleaning session.
Frequently Asked Questions
Which BISSELL Portable Carpet Cleaner Is Best Overall?
The Little Green Pet Pro 3909 is the best overall choice in this comparison because it combines larger tanks, a 5-foot hose, and three specialized tools. The lighter Max Pet SmartMix may be a better fit when portability and automatic mixing matter more.
Which Model Is the Lightest?
The Little Green Max Pet SmartMix 38572 is the lightest of these three machines at 8.2 pounds. That makes it easier to carry between rooms, up stairs, or out to a vehicle.
Can These Machines Clean Upholstery and Car Interiors?
Yes, they are designed for many water-safe upholstery fabrics and vehicle interiors. Check the care label first, test a hidden area, and do not use a water-based machine on fabric marked only “S” or “X.”
How Often Should I Clean the Machine?
Clean it after every use. Empty and rinse both tanks, remove debris from the tool, flush or rinse the hose as directed, and let the components dry before storage. This reduces odors, residue, and loss of suction.
Can I Use Any Cleaning Solution?
Use a low-foaming formula specifically labeled for portable carpet-cleaning machines and follow the manufacturer’s directions. Dish soap, laundry detergent, and unapproved high-foam cleaners can leave residue or interfere with machine performance.
Will a Portable Cleaner Wash an Entire Carpeted Room?
It can treat individual spots, but it is not the efficient choice for an entire room. A full-size upright extractor has a wider cleaning path and larger tanks for wall-to-wall carpet.
Final Recommendation
Choose the Little Green Pet Pro 3909 for the best balance of capacity, reach, and specialized tools. It is the strongest fit for homes that handle pet accidents and upholstery cleaning often.
Choose the Max Pet SmartMix 38572 when low weight and automatic formula mixing are the priorities.
Choose the Pet Deluxe 3353 when you want a compact, straightforward machine with a useful tank size and easy hose-maintenance accessories.
