The KWI 1 window cleaner from Kärcher is the ideal solution for sparkling glass surfaces. With a 250 mm blade and a 100 ml dirty water tank, it offers a 25-minute battery life—enough to clean up to 70 m² (about 23 windows). Its lithium-ion battery recharges in just 150 minutes. Compact (130 x 250 x 275 mm) and lightweight (0.5 kg), it's easy to handle with one hand. Perfect for windows, mirrors, and other smooth surfaces, it ensures streak-free, fast, and efficient cleaning.
| Working width of suction nozzle | 250 mm |
| Dirty water tank capacity | 100 ml |
| Battery runtime | 25 minutes |
| Battery charging time | 150 minutes |
| Battery type | Lithium-ion battery |
| Area cleaned per charge | Approx. 70 m² (23 windows) |
| Power supply | 100 - 240 V / 50 - 60 Hz |
| Color | White |
| Weight with battery | 0.5 kg |
| Dimensions (L × W × H) | 130 x 250 x 275 mm |