In regards to window cleaning robots, there are 2 main types: Round-shaped & Square-shaped; both attach to the surface of a window with the help of a vacuum motor.
- Round-shaped have 2 cleaning wheels with microfiber (double side usable). There's a vacuum motor inside to rotate the wheels while the device is moving; similar to hand movement in cleaning of a window. They are very effective at cleaning heavy dust.
- Square-shaped clean windows with the help of a large microfiber cloth which presses on the window with auto-adjustable pneumatic pad. These devices move with assistance of caterpillar belts at the speed of 5 inches per second. They are more efficient for corner cleaning.
The most up-to-date models of round & square-shaped window cleaning devices feature automatic water-spray function. They spray water evenly, similar to the effect of human exhale on the glass, through a delicate ultrasonic chip nebulizing it to 15μm mist particles. You may refer to the video below for more information:
Listed below is a comparison chart. The general guideline is that round-shaped units are better at cleaning heavy dust, and square-shaped ones are more efficient and more suitable for maintenance purposes.
|Cleaning pattern||Liner clean, Zigzag then N-way||Rotating, Zigzag|
|Cleaning speed||2,4 min/m2||4,0 min/m2|
|Framed glass size||> 40 cm2||> 35 cm2|
|Ultrasonic water spray||Yes||Yes|
|Replaceable water tank||40 ml||24 ml|
|Maximum cleaning area (per 1 ml)||1 m2||1 m2|
In summary, you may choose a model according to your cleaning preferences, your specific environment, and your desired speed of cleaning. If you like to clean more frequently, we recommend you choose a square-shaped model. If your windows get dusty fast, we suggest you get a round-shaped one.