HCR-21 Smart Window Cleaning Robot – Streak-Free ; Safe for High Windows | PuRuiKai
HCR-21 Smart Window Cleaning Robot – Streak-Free ; Safe for High Windows | PuRuiKai
🔥 600+ sold
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Window Cleaner Robot 2.68inch Ultra-Thin, Intelligent Frameless Anti-Fall, Automatic Window Cleaner for Glass, Tile, Mirror, Remote & App Control, Light & Compact
Smart Window Cleaning Robot – Streak-Free & Safe for High Windows | PuRuiKai
Effortlessly clean your windows with our intelligent window cleaning robot. Safe for high-rise glass, app-controlled, and streak-free every time.
PuRuiKai focuses on the independent development, design and manufacture of intelligent cleaning robots, upholding the mission of "Let robots serve us".
We actively explore how to bring better experience to users and look forward to let robots enter more homes around the world, so that users can easily enjoy modern smart home life with the participation of robots.
Intelligent window cleaner robot,comfortable living,efficient cleaning,frame detection, integrated frame detection sensor,automatically detects the boundaries and adjusts the direction.
https://www.youtube.com/playlist?list=PL5WazpeY_vhpOBdJRO46m7Je7WZFfEHZT Welcome to visit our youtube channel to see our product videos.

✅ Automatic Cleaning: Hands-free, intelligent path planning
🧽 Streak-Free Results: Strong suction and microfiber pads
🏠 Perfect for Home & Office: Works on all flat glass surfaces
📱 App-Controlled: Clean remotely with your smartphone
🏢 High-Rise Friendly: Safe and secure even on tall buildings
🔋 Rechargeable & Efficient: Long battery life, fast charging
🌍 Designed for Global Use: Compatible with US/EU standards






PuRuiKai Window Cleaning Robot with Ultra-Thin 2500PA Auto Dual Two-Way Water Jet Model Glass Cleaning Automatic Smart Robot Cleaner Window Vacuum Cleaner Tiles/Class Door Indoor
Dear buyers, We are glad you like this product. Our product is designed according to CE, FCC, and ROHS standards, and relevant certifications are available upon request.
Using way:
1. Wait 20 seconds after startup until the blue light stops flashing before operating the robot, as it needs time to detect the glass surface.
2. Always use the safety rope to prevent falls from height.
3. Spray a small amount of water on the mop edge during operation for better cleaning results.
4. When you receive the item,please contact us if you have any questions, we will solve it for you.
Note:
1. The machine must be operated while plugged in. The internal battery serves only as a backup to prevent sudden power loss and potential falls.
2. For your safety, always secure the safety rope when using the window cleaning robot.
3. During operation, you may lightly spray water on the mop for better cleaning performance. Do not use the robot if the mop is excessively wet.
Important Cleaning Tips Sharing, Efficiently Using the Machine to the Best
How to Clean Extremely Dirty Exterior Window Glass?
1. First, slightly dampen the cleaning cloth and spray it with cleaning fluid. Then turn on the machine and wipe the whole piece of glass once. At this time, the scene may look a bit messy.
2. For the second time, replace it with a clean, slightly damp cloth and wipe again. If the machine slips, turn off the water spraying function of the window cleaning machine. If the cleaning cloth gets very dirty, replace it with a clean one.
3. After the machine wipes the glass for the third time, the glass will be basically clean.
How to Avoid Water Marks?
1. Clean the bottom belt frequently: Use the remote control or the machine buttons to make the bottom belt rotate idly, and then wipe it with a clean cloth.
2. The cleaning cloth must be kept slightly moist during operation. If there is too much water, the machine will easily slip, and the cleaning effect will also be poor.
Usage Environment Limitations?
1. In the freezing winter, do not use the newly received machine immediately. Plug it in and use it after the machine has been at room temperature for a while.
2. When the outdoor temperature in winter is below 0 °C, do not use the machine outdoors for a long time.
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- Power: 72W
- Remote Control: Yes
- Material: High-quality Plastic
- Cord Length: 4.5m
- Plug Type: EU/US/UK (according to your region)
- Batteries Included: Yes (built-in backup battery)
- Certification: Designed to meet CE, FCC, ROHS standards; certificates available upon request
- Brand: PuRuiKai
- Size: 33*26*12cm
Very impressed, great for keeping CLEAN windows clean. Speedy delivery, well packaged, works as advertised.
Came quickly. The packaging is excellent. Haven't tried it yet.
It turned out great. I thought it would be hopeless but I am satisfied. The windows, of course, were not dirty in any way, just splashed without heavy dirt and it handled it perfectly, I thought it would be worse. For this price, it's a revelation :)
The shipping was very fast and secure (better than Choice, which is getting worse and worse....)
The product is surprising if they are hard-to-reach crystals.
If you're looking for something that leaves them spotless: No, scrape your pocket well and it won't be much better.
Arrived quickly. Device is as described, stocked very well on the window glas. The only problem is that the robot use a language that i don't understand.