The Nitecore Electronic Photography Blower BB21 is a lighter and more compact version of the popular BB2. It has a maximum wind speed of 80km/h powered by a rechargeable built-in 7.2Wh Li-ion battery.

The BB21 features a magnetic quick release brush. This magnetic design is suitable for changing brushes according to different cleaning needs. It also features a high density filter and a premium silicone nozzle. Compared to the  previous model, the motor power has increased by around 51% which can easily blow away dust on the lens. Designed by the application of fluid dynamics, the air duct can effectively reduce wind resistance while improving wind power.

The blower offers 3 different modes, turbo, optical and silent. The turbo produces a high efficiency cleaning performance and the optical is for camera sensor cleaning. There is an indicator making it clear which mode has been selected, along with a power indicator, letting you know when to recharge.