Make window cleaning fast, convenient and fully automatic!
The PuRuiKai PRK-21B is a powerful and modern window cleaning robot suitable for both homes and offices. It thoroughly cleans glass from both sides using high-power vacuum suction and intelligent route planning.

Key features and benefits

✓ Dual Spray
Automatically sprays cleaning agent in both directions, ensuring even and effective window washing.

✓ High vacuum suction
Holds firmly to glass and smooth surfaces, allowing the robot to safely clean even large windows and vertical walls.

✓ Smart memory and route planning
The robot remembers its cleaning path, does not miss any area and is able to automatically return to the starting point.

✓ Laser sensors for safety
Ensures precise edge detection and prevents the robot from falling. Also suitable for frameless windows.

✓ Universal voltage 100–240V
Works in every household - no converters required.

✓ 4.5 m cable
Allows cleaning of larger window groups and higher surfaces.

Technical information

• Model: PuRuiKai PRK-21B (HCR-21B)

• Power: <800W

• Connection: 100–240V

• Cord length: 4.5 m

• Spraying: Dual-Spray

• Sensor system: Laser Edge Sensor

• Suitable for: windows, glass walls, tiles, smooth walls