DEXP MMB-300: A Budget Robot Vacuum Cleaner from DNS

DEXP MMB-300 photoDEXP MMB-300 photo

This review is dedicated to the Chinese-made DEXP MMB-300 robot vacuum cleaner for dry cleaning of all types of flooring and wet cleaning of hard floors. This robot has decent technical specifications considering its price of $120. It also has a separate water tank, and the timer function allows you to set an automatic start time, allowing the robot to clean even when you're not home. Like the previous model, LF-200This robot is manufactured by DNS, which is also responsible for its sales. Below, we've reviewed the specifications, features, and pros and cons of the DEXP MMB-300.

Equipment

The robot is packaged in two boxes. The first outer cardboard box is a shipping box and looks quite ordinary. The second inner box is more presentable and colorful, and features a description of the DEXP MMB-300's key features and functions. A plastic handle is included for easy carrying. To prevent any unpleasant incidents during delivery, the packaging is sealed with a special ink-coated tape. If this tape is broken, it will be immediately obvious that the box has been tampered with.

DEXP MMB-300 delivery set:

  1. Robot vacuum cleaner.
  2. Charging station.
  3. Remote control.
  4. Network power adapter.
  5. Side brushes (2 pcs.).
  6. Spare filter.
  7. Water tank.
  8. Attachment with microfiber cloth.
  9. Cleaning brush.
  10. User manual.
DEXP packageDEXP package

DEXP package

All components are neatly arranged in a cardboard matrix, each compartment of which is designed to accommodate the inserted spare part or accessory. It's important to note that batteries for the robot's remote control are not included in the basic package and must be purchased separately.

Appearance

The robot vacuum cleaner is made of plastic and has a round shape. The main colors are gray and white. The bottom is black. The design is quite traditional, similar in appearance to a number of similar models, such asiBoto Smart X610G Aqua.

On the front panel there is only a dust collector compartment cover and a single button to start the DEXP MMB-300.

Front viewFront view

Front view

Looking at the side, we see a protective bumper, air vents, a power button, and a socket for connecting a network adapter for recharging from the mains.

Side viewSide view

Side view

On the back of the robot are two large side wheels and one rotating front wheel. The front plastic wheel has cutouts similar to a tread. The side wheels have a plastic rim, which is fitted with rubber tires with a tread. For improved maneuverability, the wheels are mounted on spring-loaded chassis.

Bottom viewBottom view

Bottom view

Also on the bottom of the robot vacuum cleaner are contact pads for recharging on the docking station, a battery compartment, two side brushes and a suction hole.

Technical specifications

We invite you to familiarize yourself with the technical characteristics of the DEXP MMB-300:

Type of cleaning Dry and wet
Power supply Li-Ion battery 14.4 V, capacity 2000 mAh
Opening hours Up to 100 minutes
Charging time 240-300 minutes
Rated power 25 W
Cleaning area up to 100 m2
Dust collector Cyclone filter
Dust container volume 600 ml
Water tank capacity 180 ml
Dimensions 320x320x78 mm
Weight 2.5 kg
Noise level 70 dB

Functional capabilities

The robot vacuum cleaner is a type of device without a turbo brush. Cleaning is accomplished using two side brushes that direct debris toward the suction port. The lack of a turbo brush negatively impacts cleaning performance on carpets, but it eliminates the problem of pet hair and fur constantly tangling around the brush.

Carpet cleaningCarpet cleaning

Carpet cleaning

To create a localized vacuum and to expand the area of ​​dust particle capture, soft rubber curtains are provided around the opening.

All movements of the DEXP MMB-300 are monitored by a built-in sensor system. An IR obstacle detection sensor is located behind the bumper. When it detects an obstacle, it pauses a few centimeters away from it and then redirects the robot vacuum cleaner in the opposite direction. The protective bumper also acts as a mechanical touch sensor. Four additional sensors are also installed on the bottom to prevent the DEXP MMB-300 from falling from heights.

The robot has the following operating modes:

  • “Smart cleaning” is the main mode, which is a cyclical change of movements along parallel lines, the perimeter, as well as random routes;
  • Cleaning one room – the robot vacuum cleaner’s movement pattern is similar to the previous mode, but the suction power is increased;
  • scheduled operation – activated by time, the cleaning trajectory is the same as in the main mode;
  • Perimeter cleaning - DEXP MMB-300 goes clockwise around the edges of the room along the baseboards;
  • direct navigation – manual control of the device using the remote control;
  • Wet cleaning – the robot vacuum cleaner does not suck up debris, but only wipes the floor with a damp cloth.

Before starting work, ensure the safety of items on the floor in the room, as well as the robot vacuum cleaner itself. It is recommended to lift all fragile items such as vases, pet bowls, and wires.

Advantages and disadvantages

Let's conclude our review of the robot vacuum cleaner with a list of its main advantages and disadvantages, taking into account the model's price.

Advantages of DEXP MMB-300:

  1. Nice design.
  2. Small size.
  3. Automatic return to docking station.
  4. Timer.
  5. Different operating modes.
  6. Wet cleaning.

Cons:

  1. Inefficient navigation algorithm.
  2. There is no movement limiter.
  3. Incorrect perception of dark surfaces and objects.
  4. It makes a lot of noise.

Considering the above advantages and disadvantages, we believe this is far from the best robot vacuum in its price range, but it's not the worst either. It's a bit of a "middle of the road." It's better to spend a little extra and choose a more functional robot vacuum, like one of our top picks for the best models under $150: https://robovac.washerhouse.com/en/rejtingi/robovac-roboty-pylesosy-do-15000-rublej.html.

Finally, we recommend watching a video review of the DEXP MMB-300:

Analogues:

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