Lehmann cordless window cleaner 25 cm at a glance
In short: the Lehmann cordless window cleaner 25 cm scores 7,8/10 in our window vacuum review (from €30). Biggest strength: 25 cm width. Main compromise: only a 100 ml tank.
All specifications come from manufacturer data sheets and the Amazon catalogue and were cross-checked before publication. The rating is an editorial overall assessment based on this data; we do not trial products ourselves.
Lehmann cordless window cleaner 25 cm: what works, what doesn't?
What works well
- 25 cm width: large panes are cleaned in fewer passes and without drops, saving time on balcony doors
- Telescopic pole included: extendable from 42.5 to 62 cm so high and hard-to-reach windows can be reached
- Spare squeegee blade included: a replacement blade is in the box, so no later search for matching accessories
- Integrated spray function: spreads cleaning fluid evenly, wiping and vacuuming in one sequence
- Complete set: window vacuum, microfibre cover, charger and telescopic pole make it ready to use straight away
Points of criticism
- Only a 100 ml tank: the small dirty-water tank has to be emptied more often with many windows
- Runtime up to 25 min: the 2,200 mAh battery is enough for a normal round, but with very many windows it can get tight
Specifications in detail
| Type | Cordless window cleaner (set) |
| Cleaning width | 25 cm |
| Battery | 2,200 mAh Li-ion |
| Run time | up to 25 minutes |
| Telescopic pole | extendable 42.5 to 62 cm |
| Tank | 100 ml |
| Spray function | integrated |
| Protection rating | IPX4 (splash-proof) |
| Accessories | Spare squeegee blade, microfibre cover, charger |
Build quality & everyday use
What carries the Lehmann cordless window cleaner 25 cm in everyday use: 25 cm width (large panes are cleaned in fewer passes and without drops, saving time on balcony doors) and Telescopic pole included (extendable from 42.5 to 62 cm so high and hard-to-reach windows can be reached). We have to be honest about the weaknesses: only a 100 ml tank, because the small dirty-water tank has to be emptied more often with many windows.
If you set the device up to save space, make sure it stands on a stable, level surface with some air around it. This protects the mechanics and electronics in continuous use.
Who is the Lehmann cordless window cleaner 25 cm suited to? (buying advice)
Perfect for:
- ✓Households with high or hard-to-reach windows
- ✓Large glass areas and balcony doors
- ✓Mirrors, tiles and shower cubicles
- ✓Anyone who wants a set with a spare blade and pole
Less suitable for:
- ✕Very many windows without emptying breaks
- ✕Anyone who expects maximum battery life
Similar window vacuum models
Frequently asked questions about the Lehmann cordless window cleaner 25 cm
What is the telescopic pole good for?
Why is a second squeegee blade included?
How big is the dirty-water tank?
Which surfaces is it suitable for?
Verdict: is the Lehmann cordless window cleaner 25 cm worth it?
A solid option with a clear profile: if you can live with only a 100 ml tank, from €30 you get mainly one thing: 25 cm width. It suits best: households with high or hard-to-reach windows.
If you want to compare alternatives, you will find detailed data and reviews on our window vacuums comparison page.
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