The new generation of electric compressed air dust collectors has redesigned blowing nozzles and updated blowing power. Plus, there's a mini brush that fits over the mouthpiece to help brush away sticky dust as you blow. Plus, an electric air duster lets you use it to blow dust at any angle, with no steam coming out, and its non-static nature makes it a great tool for cleaning all kinds of electronics.Keyboard vacuums are especially useful for cleaning computer towers, laptop keys, keyboard crevices and other electronics. There's also a mini brush that fits over the flat nozzle to help you brush away stubborn dust, and the soft bristles gently brush your computer fan or electronics while vacuuming without scratching or damaging it. 3-in-1 Electric Air Duster and Vacuum Purchasing one compressed electric air duster at a time is the equivalent of buying a compressed computer air duster, a mini vacuum, a blower, countless air cans, and cleaning gels. No more polluting the environment, using both cleaning methods together can save you a lot of money in the long run. The cordless compressed air dust collector is designed with a 6000mAh rechargeable high-capacity battery that can run for 30 minutes at a time. Lightweight at 0.7 lbs and with a cordless design, this electric air duster can be held in one hand for easy portability.