iRobot Roomba Max 875 Combo Challenges Stick Vacuums With New SealForce Technology

The headline feature is SealForce, a proprietary seal that presses the chassis against carpet fibers so airflow stops escaping sideways. If the marketing holds up in independent testing, this is the first robot built to attack the deep-pile gap that cordless vacuums have historically owned.

What SealForce actually changes

The mechanism is straightforward. The robot lowers a skirt that forms a tight seal against carpet, then drives 35,000 pascals of suction through that closed channel. Adam Pope, iRobot's vice president and chief engineer, framed it in a statement as concentrating airflow rather than simply boosting it: "More suction helps, but the seal is what takes it to a level beyond what's previously been possible." iRobot also claims 3x deeper carpet cleaning versus its own prior models. That figure is an internal comparison, not a head-to-head against a Dyson or a Roborock — you will need to wait for third-party pickup tests before treating it as a benchmark.

On hard floors, the Max 875 sprays heated mist continuously to soften dried stains, then drives a roller mop at 300 RPM with 18 newtons of downward pressure. iRobot says the mop is the industry's largest and that the combo delivers 2x stain removal, 3.75x deeper scrubbing, and 1.2x wider coverage per pass. We can bypass the marketing math for now; what matters at launch is whether the heated-mist system actually loosens grime or merely dampens it.

Dock, sensors, and the things to verify before you buy

The dock washes the mop at 176°F, dries it at 131°F, auto-refills cleaning fluid, and self-empties into a bag rated for 90 days. Navigation runs on lidar with AI object recognition for 300+ household items, and the carpet-detection routine raises the mop and drops a shield to prevent drips on rugs. Antitangle and hair-cutting main brushes round out the package — standard expectations at this tier.

Before pre-ordering, you will need to confirm three things: independent pickup scores on mid-pile and high-pile carpet, real-world noise output during the dock's self-empty cycle, and whether the chassis skirt survives repeated low-clearance encounters with baseboards and thresholds. Gizmodo's hands-on review of the Roborock Qrevo 2 Pro is a useful reminder — a midrange unit arrived with a misaligned roller-brush bracket that prevented docking, and the issue only surfaced after roughly 90 minutes of physical inspection. If iRobot's SealForce skirt has a similar tolerance window, return-rate data from the first production run will tell us more than any spec sheet.

What else is landing this season

The Max 875 is not arriving alone. Tapo expanded its budget line with the RV30 Max Plus Gen 2, adding multi-floor LiDAR mapping at an entry-level price point. Xiaomi announced the Robot Vacuum S40 Pro and the auto-emptying H40, both leaning on autonomous docking routines and broader multi-surface coverage. The practical takeaway for buyers: premium suction is no longer the only story. Mop hygiene, dock automation, and obstacle avoidance are now table stakes across every price band. Hold your purchase decision until CNET's hands-on impressions from the IFA floor go live later this week.