Compare Roomba Combo j7+ Robot Vacuum & Mop vs Eufy S2 Omni

P1 Roomba Combo j7+ Robot Vacuum & Mop
P2 Eufy S2 Omni

Comparison Takeaways

Roomba Combo j7+ Robot Vacuum & Mop

Where It Has the Edge

  • Noise level is 4.4 vs 3.1. During cleaning, noise is commonly described as moderate to fairly quiet for a robot vacuum, especially on carpet;...
  • Carpet — Low-Pile Pickup is 4.3 vs 3.7. Low-pile carpet pickup is typically strong for a Roomba, though a few tests note small misses with certain...
  • AI, Smart, App and Automation is 4.3 vs 3.9. Strong smart feature set: scheduling, room/zone routines, recommendations, and learning-based adjustments are frequently praised; some reviewers still want...
  • Obstacle Avoidance (Robot) is 4.4 vs 4.1. Obstacle avoidance is a core strength: consistently strong on cords and common clutter, with pet-waste avoidance highlighted; not...

Eufy S2 Omni

Where It Has the Edge

  • Hair‑Wrap / Tangle Resistance is 4.8 vs 3.3. Hair-wrap resistance is one of the strongest consensus wins, especially for long-hair and pet households.
  • Corner Cleaning (Robot) is 4.5 vs 3.2. Corner cleaning benefits from an extending side brush, though independent tests suggest the robot can still leave perimeter...
  • Maintenance requirements is 4.6 vs 3.3. Maintenance needs are low overall thanks to the dock, cyclonic filter, and anti-tangle brush, though roller-tray buildup and...
  • Bin and Bag is 4.4 vs 3.2. The dustbin and bag system benefits from automatic emptying and strong dock suction, reducing hands-on bin work.
Average score
Product 1: Roomba Combo j7+ Robot Vacuum...
3.8
Product 2: Eufy S2 Omni
4.3
Accessories and Tools
Product 1: Roomba Combo j7+ Robot Vacuum...
4.4

Included accessories commonly noted: extra filters/side brushes, mop pads, and cleaning solution samples; overall kit is seen as complete for getting started.

Product 2: Eufy S2 Omni
4.5

Included extras are solid for a flagship robot vacuum, with reviewers noting cleaning solution, fragrance modules, documentation, and extra dust bags in the box.

Adaptive chassis lift
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

The S2's chassis-lift feature is repeatedly presented as a major upgrade for plush rugs, thresholds, and higher-pile carpet handling.

Aesthetic design and finish
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Reviewers generally liked the modern, visible-tech design, translucent top, lighting, and premium styling, though the dock can be taller than some alternatives.

AI, Smart, App and Automation
Product 1: Roomba Combo j7+ Robot Vacuum...
4.3

Strong smart feature set: scheduling, room/zone routines, recommendations, and learning-based adjustments are frequently praised; some reviewers still want finer manual controls (for example, suction) or better job-queue flexibility, and a few note occasional app quirks/crashes.

Product 2: Eufy S2 Omni
3.9

AI navigation, 3D mapping, floor-type recognition, and app controls are useful, but the deepest independent test found app customization and smart-home integration behind rivals.

Area Rug Handling
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Area rug handling is a notable strength in several reviews, with the S2 lifting, avoiding tassels, and preventing rugs from bunching or getting pushed around.

Assembly and Setup
Product 1: Roomba Combo j7+ Robot Vacuum...
4.4

Setup is usually described as straightforward with guided app onboarding and mapping runs; mapping can take more than one pass and may be slower than LiDAR-based bots in initial setup.

Product 2: Eufy S2 Omni
4.6

Setup is consistently described as simple, with the app and base display guiding pairing, mapping, and first cleaning with little friction.

Battery and Charging
Product 1: Roomba Combo j7+ Robot Vacuum...
3.4

Battery feedback is mixed: some tests report long runtimes (especially in vacuum-only mode), while others describe below-average endurance for a premium bot; recharge-and-resume helps mitigate this.

Product 2: Eufy S2 Omni
4.2

Battery comments are mostly positive, but measured coverage varies sharply by suction level and real-world recharge time can be long.

Bin and Bag
Product 1: Roomba Combo j7+ Robot Vacuum...
3.2

Bagged dock system is viewed as clean and allergy-friendly, with spare-bag storage noted; onboard bin/tank combo is relatively small, contributing to more frequent intervention for mopping.

Product 2: Eufy S2 Omni
4.4

The dustbin and bag system benefits from automatic emptying and strong dock suction, reducing hands-on bin work.

Build quality and durability
Product 1: Roomba Combo j7+ Robot Vacuum...
4.4

Build quality is commonly described as sturdy and well-finished, with thoughtful design touches; long-term durability perceptions vary mostly with software/navigation reliability rather than physical wear.

Product 2: Eufy S2 Omni
4.5

Build quality impressions are positive, with reviewers calling the construction solid and the overall package premium.

Carpet — High-Pile Pickup
Product 1: Roomba Combo j7+ Robot Vacuum...
4.2

High-pile carpet and pet-hair pickup are frequently rated very good to excellent, though ultra-plush rugs and embedded debris may still benefit from multiple passes.

Product 2: Eufy S2 Omni
4.3

High-pile and thick-rug handling is a split point: several reviewers praised climbing and deep cleaning, while one lab-style test found carpet agitation underwhelming versus rivals.

Carpet — Low-Pile Pickup
Product 1: Roomba Combo j7+ Robot Vacuum...
4.3

Low-pile carpet pickup is typically strong for a Roomba, though a few tests note small misses with certain fine debris and occasional need for extra passes.

Product 2: Eufy S2 Omni
3.7

Low/mixed carpet pickup is usable, but independent testing found it did not clearly outperform cheaper Eufy models or the older S1 Pro in deep-clean scoring.

Carpet — Medium-Pile Pickup
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.2

Medium-pile carpet evidence is limited but positive, with one review citing solid medium-pile results.

Child lock
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
3.8

Child lock exists on the station controls, though one reviewer noted it can reduce the touchscreen's practical usefulness.

Clogging and debris prevention
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.8

Cyclonic separation and filter cleanliness are strong recurring themes, with reviewers finding suction stayed strong and filters avoided clogging.

Comparative performance
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.0

Comparisons are mixed: the S2 improves on some Eufy weaknesses and beats some rivals in specific tests, but other flagships remain stronger for carpet, mopping feel, or value.

Controls and UI
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.3

The app and station controls are generally easy to use, with clean navigation and touchscreen controls, but advanced customization is not class-leading.

Corner Cleaning (Robot)
Product 1: Roomba Combo j7+ Robot Vacuum...
3.2

Corner cleaning is adequate but not class-leading; multiple reviews mention missed debris in tight corners or along awkward nooks.

Product 2: Eufy S2 Omni
4.5

Corner cleaning benefits from an extending side brush, though independent tests suggest the robot can still leave perimeter gaps depending on the run.

Crevice / Groove Pickup (Hard Floors)
Product 1: Roomba Combo j7+ Robot Vacuum...
3.4

Crevice and edge-line pickup is mixed: capable overall, but some tests note weaker crevice performance versus higher-suction rivals and occasional residue along rug edges.

Product 2: Eufy S2 Omni
3.9

Groove and crevice evidence is positive for cracks but mixed for grout, where one test removed only part of the residue.

Cyclone performance
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Cyclone performance is one of the clearest strengths: multiple reviewers praised multi-cyclone separation for maintaining airflow and keeping filters cleaner.

Dirty water sensor
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.2

Dirty-water sensing evidence comes mainly from the dock's intelligent dirt detection, which can trigger additional washing or cleaning when water is dirty.

Docking and Auto-Empty Reliability (Robot)
Product 1: Roomba Combo j7+ Robot Vacuum...
4.2

Docking and auto-empty are generally reliable and convenient, though a few reports describe occasional emptying failures or hardware issues with a unit/base; most users still find the dock a major usability upgrade.

Product 2: Eufy S2 Omni
4.6

The dock is a major strength, handling auto-emptying, mop washing, drying, refilling, and hair-heavy debris with few clog complaints.

Dock noise
Product 1: Roomba Combo j7+ Robot Vacuum...
3.0

Dock self-emptying noise is a consistent negative, often described as startlingly loud for a short burst, with several measurements around high-80s to around 90+ dB.

Product 2: Eufy S2 Omni
No score yet
Dried-On Stain Removal
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Dried-on stain removal is usually good for normal household stains, though heavy grout or extreme dried-mud testing is less certain.

Ease of use
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Everyday use is easy, with scheduling, automatic routines, and low-touch maintenance repeatedly mentioned as benefits.

Edge and Baseboard Cleaning (Hard Floors)
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
3.9

Edge and baseboard mopping is mixed: some reviewers liked the extending roller, while the most critical tester found visible wall gaps.

Edge‑Following Accuracy (Robot)
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
2.7

Edge-following accuracy is one of the weaker areas, with independent testing saying it rides too far from walls and sometimes avoids edges inconsistently.

Filtration / Dust Containment
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Dust containment and filtration are strong, with filters repeatedly staying clean after weeks of use and cyclonic separation keeping fine dust away from airflow.

Floorhead design
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

The floorhead design stands out for its wide roller mop, extending mop head, and dual-brush anti-tangle layout.

Floor shine after cleaning
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.8

Hard floors can look clean and shiny after mopping, though this evidence comes from one strong hands-on review.

Fresh Liquid Pickup Speed
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.5

Fresh wet-mess pickup evidence is positive in tomato sauce testing, where the robot picked up the mess without smearing.

Hair-removal channel issues
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.8

Hair-removal channel behavior is positive overall: reviewers reported no tangles and center-channel hair removal working as intended.

Hair Pickup — Carpets
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Hair pickup on carpets is strong when the priority is hair management, even if carpet agitation is not always class-leading.

Hair Pickup — Hard Floors
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.5

Hard-floor hair pickup appears strong, with reviewers finding minimal buildup on the roller after cleaning.

Hair‑Wrap / Tangle Resistance
Product 1: Roomba Combo j7+ Robot Vacuum...
3.3

Tangle resistance is generally good on the main rubber rollers versus many rivals, but long hair can still wrap (often on the side brush) and needs regular clearing.

Product 2: Eufy S2 Omni
4.8

Hair-wrap resistance is one of the strongest consensus wins, especially for long-hair and pet households.

Hard Floor — Fine Dust Pickup
Product 1: Roomba Combo j7+ Robot Vacuum...
4.7

Fine dust pickup on hard floors is generally strong in everyday cleaning, contributing to a noticeably cleaner baseline between deep cleans.

Product 2: Eufy S2 Omni
4.7

Fine dust pickup on hard floors is strong, including cocoa powder and fine-particle references, with no visible residue in several tests.

Hard Floor — Large Debris Intake
Product 1: Roomba Combo j7+ Robot Vacuum...
3.9

Large debris intake is good for routine messes, but several reviewers note it can be overwhelmed by big, dense spillages (flour/rice/oats), sometimes pushing or scattering debris before recovering.

Product 2: Eufy S2 Omni
4.6

Large debris intake is strong on hard floors and mixed surfaces, with reviewers citing immediate pickup and good handling of cereal-like debris.

Headlight and LED lights
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.2

Lighting evidence is limited but positive, with one reviewer noting a light for dark areas and tight spaces.

Heating element
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

The station's heating functions are strong, with hot-water mop washing and hot-air drying repeatedly called out.

Innovation compared to competitors
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.5

Reviewers treated the S2 as innovative thanks to the fragrance system, cyclonic airflow, roller mop, and award/first-look attention.

Kid-friendliness
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.3

Kid-friendliness is supported mainly by chemical-free sanitizing and cleaner floors for children or pets, not by child-specific controls beyond lockout.

Large debris handling
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Large debris handling is generally strong, with cereal, candy, and heavier debris picked up well in multiple tests.

Low-profile design
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.5

Low-profile performance is positive for the robot body, which can fit under beds or tighter furniture better than some taller models.

Maintenance requirements
Product 1: Roomba Combo j7+ Robot Vacuum...
3.3

Maintenance workload is moderate: dust emptying is automated, but mop pads and water refills are manual; periodic brush/side-brush cleaning is needed, especially with long hair or heavy debris.

Product 2: Eufy S2 Omni
4.6

Maintenance needs are low overall thanks to the dock, cyclonic filter, and anti-tangle brush, though roller-tray buildup and tank rinsing still matter.

Maneuverability and Handling
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.4

Maneuverability is generally smooth, with one reviewer praising movement quality and another noting mapping/path quirks around obstacles.

Map and Path Efficiency (Robot Vacuums)
Product 1: Roomba Combo j7+ Robot Vacuum...
4.0

Mapping and systematic coverage are often described as accurate and reliable once trained, but camera-based navigation can be less time-efficient than LiDAR in complex spaces and a minority of experiences report stalled/errored runs.

Product 2: Eufy S2 Omni
4.2

Mapping is fast and detailed, but path efficiency is not perfect in obstacle-heavy testing.

Mop lifting system
Product 1: Roomba Combo j7+ Robot Vacuum...
4.8

Retractable mop lifting system is repeatedly cited as best-in-class for protecting rugs: the pad fully stows on top rather than hovering close to carpet, reducing drips and cross-contamination concerns.

Product 2: Eufy S2 Omni
4.6

The mop-lift system is a major strength, with 28 mm lift and carpet avoidance repeatedly mentioned, though one review wished for a mop cover.

Mopping performance
Product 1: Roomba Combo j7+ Robot Vacuum...
3.9

Mopping is generally rated good for routine upkeep and light messes, leaving floors shinier; it is commonly described as less aggressive than true scrubbing systems and may need multiple passes for tougher stains.

Product 2: Eufy S2 Omni
4.5

Mopping is one of the best-supported strengths, especially on hard floors, visible stains, and everyday LVP/tile cleaning.

Noise level
Product 1: Roomba Combo j7+ Robot Vacuum...
4.4

During cleaning, noise is commonly described as moderate to fairly quiet for a robot vacuum, especially on carpet; the main noise complaint centers on the dock, not the robot itself.

Product 2: Eufy S2 Omni
3.1

Noise is a drawback: reviewers measured or noticed above-average sound, especially on maximum suction.

Obstacle Avoidance (Robot)
Product 1: Roomba Combo j7+ Robot Vacuum...
4.4

Obstacle avoidance is a core strength: consistently strong on cords and common clutter, with pet-waste avoidance highlighted; not perfect, as some odd items (mugs, drapes, tiny toys, straps) can still be pushed or snagged.

Product 2: Eufy S2 Omni
4.1

Obstacle avoidance is useful but not flawless; some reviewers saw excellent avoidance, while independent testing found everyday clutter still gets pushed.

Odor control
Product 1: Roomba Combo j7+ Robot Vacuum...
3.2

Odor is mostly contained while the dock is closed, but some users notice a dusty smell when opening the base to swap the bag, similar to other bagged vacuums.

Product 2: Eufy S2 Omni
4.3

Odor control is polarizing: the dock sanitation and fragrance can help, but some reviewers found the scent too weak to matter.

Ongoing ownership costs (bags, filters, batteries)
Product 1: Roomba Combo j7+ Robot Vacuum...
3.6

Ongoing costs mainly come from disposable dock bags and occasional replacement brushes/filters; several reviews view bags as convenient and cleaner to handle, but they add recurring expense versus bagless docks.

Product 2: Eufy S2 Omni
No score yet
Overall cleaning convenience
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Overall cleaning convenience is high because the dock, mapping, self-cleaning mop, and scheduled operation reduce hands-on work.

Overall durability/longevity
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Longevity evidence is positive, centered on sustained suction, clean filters, and claims/tests showing no quick performance drop.

Overall opinion
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.5

Overall opinion is favorable but nuanced: most reviewers praised the S2, while the strongest independent review framed it as specialized rather than universal.

Packaging quality
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Packaging evidence is brief but positive, with one reviewer saying everything was well packed.

Pet-Ready Features
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Pet-readiness is supported indirectly through hair management, pet waste avoidance, pet hair pickup, and odor/sanitation features.

Price and Value
Product 1: Roomba Combo j7+ Robot Vacuum...
3.5

Value depends heavily on sale pricing: at full MSRP it is considered premium and missing some dock automation features, but discounts can make it a compelling buy for its avoidance and carpet performance.

Product 2: Eufy S2 Omni
3.2

Price and value are the clearest caveats: several reviews noted the high $1,599.99-class price and questioned value versus cheaper or competing models.

Privacy controls
Product 1: Roomba Combo j7+ Robot Vacuum...
3.3

Privacy is periodically raised due to the front camera and cloud-based maps/images; reviewers note opt-in image review and app controls, but privacy-sensitive buyers may still be cautious.

Product 2: Eufy S2 Omni
4.0

Privacy evidence is limited but positive for buyers who dislike camera-style monitoring, since one reviewer noted there is no video monitoring mode.

Runtime
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
3.5

Runtime is adequate but context-dependent; coverage can be large on low suction and much lower on max suction.

Sanitizing performance
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Sanitizing performance is widely emphasized, especially electrolyzed or ozonated water and claimed 99% to 99.99% bacteria/pathogen reduction.

Self-cleaning cycle
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Self-cleaning is a core strength: the roller cleans in real time and the dock washes, dries, and prepares the mop after runs.

Software-update support / feature longevity
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.2

Software support evidence is positive but early, with one pre-production reviewer seeing frequent firmware fixes.

Solution / Liquid system
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

The liquid system is advanced, with auto detergent, clean/dirty water handling, and electrolyzed water.

Storage footprint and upright-stand stability
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.1

Storage footprint is mixed: the station is narrow or compact to some reviewers, but taller and more wall-space-hungry to another.

Streaking / Residue
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.7

Streaking and residue performance is strong in most hard-floor tests, with reviewers repeatedly reporting no visible streaks, residue, or smearing.

Stuck resistance
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.4

Stuck resistance is positive on thresholds, rugs, and obstacles, though not every obstacle-avoidance test was flawless.

Suction and Airflow
Product 1: Roomba Combo j7+ Robot Vacuum...
4.3

Suction/airflow performance is generally perceived as strong in day-to-day pickup (especially when paired with dual rollers), though some reviewers note it can lag high-suction competitors on heavy spillages or deep crevices.

Product 2: Eufy S2 Omni
4.8

Suction and airflow are major strengths, with 30,000 Pa, 100 air watts, and sustained airflow repeatedly highlighted.

Suitability for heavy-duty use
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
3.7

Heavy-duty suitability is good but not absolute; it can tackle demanding rugs and heavy use, but sustained max boost and deep shag can still be caveats.

Support and Reliability
Product 1: Roomba Combo j7+ Robot Vacuum...
3.0

Support and reliability feedback is mixed: some reports mention unit faults or navigation/app instability, while others describe consistent hands-off operation and responsive warranty handling.

Product 2: Eufy S2 Omni
3.3

Support and reliability are mixed: firmware updates were active, but a preorder recall and short warranty caveat reduce confidence.

Under-Furniture Pickup
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Under-furniture pickup is positive, with reviewers saying it fits under most furniture and cleaned under beds that prior robots missed.

Value-for-money
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
3.4

Value-for-money is mixed: the S2 is premium and capable, but reviewers questioned whether it justifies its price over Eufy's cheaper models or other flagships.

Versatility
Product 1: Roomba Combo j7+ Robot Vacuum...
No score yet
Product 2: Eufy S2 Omni
4.6

Versatility is strong across vacuuming, mopping, carpet adaptation, hard floors, thresholds, schedules, and multi-room cleaning.

Water tank
Product 1: Roomba Combo j7+ Robot Vacuum...
3.1

Water tank is considered small, often requiring frequent refills for larger homes or higher water settings; mopping remains manual-maintenance heavy compared with newer docks that refill automatically.

Product 2: Eufy S2 Omni
4.1

Water tank usability is mostly good, with clear clean-water visibility and large reservoirs, though dirty tanks can develop odor without rinsing.