Reviews
A surprise: the K&F CONCEPT 2-in-1 device, a dust blower and vacuum cleaner.
K&F CONCEPT 2-in-1 Dust Blower & Vacuum Cleaner
Delivery was very fast, as usual with Amazon Prime. The device arrived in an attractive, sturdy box, simply inside a shipping bag. Completely sufficient without any additional packaging material. The total weight was approximately 800 grams, while the device itself, without accessories, weighs about 300 grams. Included are various accessories: the magnetically attached compressed air nozzle, the vacuum attachment with a metal filter, several brushes, and the USB-C charging cable.
The device arrived partially charged, with four LEDs indicating the charge level. It took about an hour to fully charge. A full charge from empty to full took 2.5 to 3 hours.
Attaching the magnetic compressed air nozzle is easy, and it stays in place even at the highest setting. The main power switch is located at the bottom of the handle, next to the LEDs, along with a light that illuminates with each press of the switch; another press makes the light flash. The blower can also be switched on via a button at the top of the handle, and it has three power levels.
The performance is surprising for such a small device. My first attempts were cleaning my cameras and computer keyboards. To capture the dust immediately, there's a vacuum attachment. With the help of the brush and the vacuum, even hard-to-reach areas are effectively cleaned. I used this method on musical instruments and amplifiers. It was really fun to use, and the results were impressive.
The only drawback is that when using the vacuum function, the device is used in reverse, meaning the compressed air nozzle blows directly at you. However, no particles are blown out. After a little practice, you get the hang of the correct hand position.
Conclusion:
The device fits comfortably in the hand thanks to its ergonomic design. The performance, both compressed air and suction power, is very good. The price-performance ratio (purchase price around €55) is excellent. The operating time is approximately 15 minutes at the highest setting, but the charging time is 3 hours. From my perspective, the high fan speed is acceptable. The charging time also depends on the charger used. I used a standard mobile phone charger. In summary, I find the device very useful and recommendable due to its compact size and performance.
Delivery was very fast, as usual with Amazon Prime. The device arrived in an attractive, sturdy box, simply inside a shipping bag. Completely sufficient without any additional packaging material. The total weight was approximately 800 grams, while the device itself, without accessories, weighs about 300 grams. Included are various accessories: the magnetically attached compressed air nozzle, the vacuum attachment with a metal filter, several brushes, and the USB-C charging cable.
The device arrived partially charged, with four LEDs indicating the charge level. It took about an hour to fully charge. A full charge from empty to full took 2.5 to 3 hours.
Attaching the magnetic compressed air nozzle is easy, and it stays in place even at the highest setting. The main power switch is located at the bottom of the handle, next to the LEDs, along with a light that illuminates with each press of the switch; another press makes the light flash. The blower can also be switched on via a button at the top of the handle, and it has three power levels.
The performance is surprising for such a small device. My first attempts were cleaning my cameras and computer keyboards. To capture the dust immediately, there's a vacuum attachment. With the help of the brush and the vacuum, even hard-to-reach areas are effectively cleaned. I used this method on musical instruments and amplifiers. It was really fun to use, and the results were impressive.
The only drawback is that when using the vacuum function, the device is used in reverse, meaning the compressed air nozzle blows directly at you. However, no particles are blown out. After a little practice, you get the hang of the correct hand position.
Conclusion:
The device fits comfortably in the hand thanks to its ergonomic design. The performance, both compressed air and suction power, is very good. The price-performance ratio (purchase price around €55) is excellent. The operating time is approximately 15 minutes at the highest setting, but the charging time is 3 hours. From my perspective, the high fan speed is acceptable. The charging time also depends on the charger used. I used a standard mobile phone charger. In summary, I find the device very useful and recommendable due to its compact size and performance.
29/11/2025