Midea Cube 50-Pint Dehumidifier with Pump (MAD50PS1QWT-B) review

The Midea Cube MAD50PS1QWT-B is a white 50-pint/day dehumidifier with a built-in pump, app and voice-control support, wheels, and a nested storage position. The useful case for this exact model is a drain outlet above the unit, but Midea’s manual limits that rise to 14 feet and requires the unit to sit on its bucket while pumping. The public page does not explain what the B suffix changes from the closely named pump models, so treat the label as an identity to verify—not as proof of an upgrade.

Manufacturer sources: Midea’s MAD50PS1QWT-B product page and the 2024 Cube owner manual, whose model list includes MAD50PS1QWT-B.

Midea’s exact-model gallery shows the white Cube with its handle raised. It appears rendered, but Midea does not identify its image process; the exterior does not show pump hardware.

Plan around the pump’s actual route

For a raised outlet, the manual states a maximum pump discharge rise of 14 feet above the drain port. Measure the vertical difference from the unit to the discharge point; separately make sure the hose can reach without kinks and can be secured. The number is a maximum height, not a guarantee for every hose run or installation. Midea’s instructions describe attaching a pump inlet hose at the side, seating the pump in the bucket, connecting a separate discharge hose at the back, and selecting pump mode from the controls. The pump starts only after the specified fill level and leaves water to keep its inlet submerged; this is not a tank-free setup.

That matters when comparing the -B with the white no-pump MAD50S1QWT. That no-pump model also lists 50 pints/day and offers bucket, downhill and bucketless-gravity plans, but no upward pump. The -B manual also allows bucketless gravity, but it is a different operating plan from pump drainage: do not assume the pump can run with the bucket removed or that a bucketless configuration can lift water uphill. If the drain is lower than the unit, gravity can avoid the extra pump hoses and service steps.

What the B suffix does—and does not—tell you

Midea gives MAD50PS1QWT-B its own US product page and exact model number, and the 2024 Cube manual lists it among the 50-pint pump models. Those are good reasons to keep the -B identity separate when matching an appliance to its instructions. Its page lists 50 pints/day, a pump, Smart Control, wheels, 41.54 lb and 14.45 × 14.76 × 14.57 in. The no-suffix MAD50PS1QWT page publishes the same headline values, but Midea does not explain the B suffix. The evidence does not support calling it a stronger pump, quieter revision or newer generation.

MAD50PS1QWT-A is a separate model page and guide with its own documented pump route. Because these names and white cabinets look similar, verify the complete label or carton suffix and use its matching manual; a retail title or photo is not enough to identify the B.

Capacity and fit need more than an area headline

The 50-pint/day rating separates it from smaller Cube classes, but does not promise 50 pints of daily removal in your room; temperature, humidity, airflow and moisture load matter. Midea’s B page conflicts on covered area (4,500 square feet in the heading/specification versus 1,500 in body copy), so neither area figure settles fit.

At 41.54 lb before water, it is not light to lift even though it has wheels and a handle; Midea says to use two hands. The Cube needs a level, sturdy floor, 8 inches of side clearance and 16 inches at the outlet. Its 41–95°F operating range and freeze warning matter if the drain hose runs outdoors.

Maintenance is the price of an unattended drain

The pump may reduce emptying but does not remove maintenance: Midea calls for weekly bucket emptying, air-filter cleaning every two weeks and pump-filter care. It may be loud for its first three to five minutes; no decibel rating is given. Do not run an outdoor hose at or below 32°F, when water can freeze and block it.

Who should consider MAD50PS1QWT-B

Consider the -B if the exact label matches, you need its rated 50-pint class and upward pump, the measured rise is within 14 feet, and the bucket can stay installed. A lower drain favors simpler gravity; limited lifting ability or a cold room may rule it out. Smart Access, the no-suffix pump Cube and -A are separate identities with their own pages or manuals. Area headlines do not fix leaks or identify the right unit.