We Performed 38 Tests to Find the Best Portable Carpet Cleaners

When the Good Housekeeping Institute Home Care & Cleaning Lab evaluates portable or even full-size carpet cleaning machines, we test how effectively they remove both fresh and set-in food stains and other spills from light-colored, medium-pile carpets. We even use a yellow ammonia mixture to simulate pet urine.

✔️ Warranty: Some manufacturers will void the warranty if you don’t use their brand of cleaner. Always be sure to check the manufacturer's website or the user manual. Most machines come with one-year limited warranties, while some may offer longer ones.

✔️ Brush: A carpet cleaner with a powered rotating brush can reduce the effort of removing stains from your carpet. A switch to turn off the brush when cleaning delicate fabrics is a plus. Without a powered rotating brush, you'll have to manually scrub the stain with the built-in stationary scrub brush.

✔️ Tank size: Large tanks allow for less frequent refilling and emptying for larger jobs, but remember that large tanks weigh more when full and can be harder to carry up and down stairs. A 64-ounce tank filled with solution and water will add 4 pounds of weight to the machine. If you know you will be frequently cleaning up stains or cleaning large areas, a larger machine might be handier than a smaller one.

✔️ Cordless vs. corded: A cordless cleaner is more portable, making it a great choice for car cleaning. Check how long it runs and how long it needs to recharge, especially if you’re using it for bigger jobs. You won't have to worry about battery life with a corded model, though you'll be tethered to a cleaning radius determined by the nearest outlet.

✔️ Weight: Carpet cleaners with hoses stand on their own while you're using them, so all you're really lifting is the weight of the nozzle, but they will still need to be toted from room to room and perhaps up and down stairs. With handheld models, you're holding the entire weight of the machine while you are doing the cleaning, so look for one that will be manageable even when full of water and solution.

Portable carpet and upholstery cleaners are designed to be ready to use at a moment's notice when spills happen, so if there's any leftover solution in the clean water tank when you're done, it's fine to leave it there for the next time.

But the dirty water tank should always be cleaned before storage to prevent odors. Rinse and dry out the dirty water tank, remove any fuzz, lint, or hair from the brushes and flush any debris from the nozzle. This can hamper bacteria growth and helps prevent foul smells. The last thing you want to do is deposit any old dirty remnants on a new stain.

Carolyn Forté has over 40 years of experience testing all types of cleaning appliances and stain removal products for clothing and home furnishings, drawing on her textiles background to make sure GH's recommended cleaning products are safe to use on today's carpeting, upholstery, and clothing fabrics. She is the consumer information chair of ASTM's F-11 Vacuum Cleaner Committee, where industry engineers develop test standards for wet and dry vacuums and floor and carpet cleaning appliances. She supervised all the testing for this review, assuring that the tests were conducted in a repeatable and reliable way.

Lynn Redmile is a contributing product reviews analyst for Good Housekeeping and spent over two years testing all kinds of portable and full-size floor cleaning products, including robot vacuums, handheld vacuums, and portable carpet cleaners. She conducted all the hands-on testing for this review and helped develop some of the carpet cleaning testing protocols.

Brigitt Earley, a freelance writer with 15 years of related experience, used Forté's testing notes and guidance to update this guide of the best portable carpet cleaners. Earley has also tested two of the models showcased above in her own home—the Bissell Little Green Machine has long been a personal favorite.