I ordered the rechargeable duster with 180,000 RPM by Koala Global.This device has a pistol shape similar to other battery-powered dusters. The product literature boasts a 180,000-RPM motor speed and 2500-mAh battery capacity (7500 mAh in one product image). The item without a nozzle weighs 300 grams on my scale, which is more than the 248 g of another duster I have been using. That other duster had the best of class air force that I measured among compact rechargeable blowers. This new blower takes the lead with a whopping 60% higher relative force by my measurement.I do not specifically know why this duster is more powerful than my other one. Higher fan speed, better fan blades, or better duct design are possible explanations. If all else is equal, bigger head size would be an advantage. In reality, this duster is physically bigger in every dimension. Since the output nozzles are similar in size, this duster may well pull in more air than my other duster. Whatever the case, 60% more actual force is dramatic.The device has four blue LEDs to show battery level. Having three or four LEDs lit provides me with roughly 10 minutes of operation at full speed. The lowest fan speed, selected by a manual slider, is gentle: it causes paper sheets at a distance under 10 cm to move around (almost fly away). At full speed, the blower can stay levitated off a table when its handle is balanced on one or two fingers. The slider offers many steps of speed adjustment (probably analog variability), but I always go for maximum power. When only two LEDs remain on, operation at full power ceases in approximately one minute.The power button alternately turns the machine on or off. The button only responds when held for about 1.5 seconds. I foolishly turned the machine on and placed it on a smooth floor. It rapidly accelerated to spin in a tight circle. To avoid a crash and damage, I quickly grabbed the blower and turned it off. I like the option to take my finger off the trigger while the motor is going. However, that power comes with great responsibility. I will not let this tool leave my grip while running again.The blower does not run when charging.This duster adeptly loosens debris inside keyboards, computer screen bezels, mouse buttons, USB ports, speaker grills, and mirrorless camera controls. It makes short work of clearing off bigger spaces in computer cases and car consoles (though I would vacuum first to minimize airborne dust). This tool also does an excellent job removing particles from every end of my manual espresso grinder. Blowing the grinder is surprisingly thorough and and radically quicker than dismantling for manual wiping and brushing.This duster does not compare to a 110 V plug-in duster for sheer power. However, this product eliminates the need to repeatedly buy cans of compressed air, emits no pollutants (that I know about), and blows without freezing. Total runtime for the battery is limited, but I can clean my espresso grinder a few times before recharging. Frequent use of a cordless device is not bad, and I can easily plan recharging by looking at the battery level LEDs.This is an excellent blower for household use. The power level is ample for me and the battery capacity provides many brief blasts or one sustained torrent to clean small items. I am very satisfied with this product.

I have bought one of these from amazon in the past and it was junk so I have been hesitant to buy another but wow... this sounds like a jet turbine engine powering up. I feel like I am on the runway about to take off every time I rev it up and man is it strong. I already tossed my old one out this one is so powerful. It does have a speed control and isn't too loud in the low setting but for cleaning you almost will always slide it to full which brings up the volume with the air flow.

Powerful Blower, sounds like a jet. Variable speed which is good for BBQ and Cleaning car. Long battery life. Good product.

Ma femme voulait pouvoir sécher sa tondeuse à gazon après l'avoir lavée.La soufflette fait parfaitement son travail et elle enlève même les résidus de tonte.Je recommande cet article.Une batterie amovible optionnelle serait un avantage pour en avoir une en utilisation et une en recharge.