The enhance A4 Storm is a non-CDL street sweeper. While there is no CDL required, the machine is still a full-sized street sweeper in a compact package. Great for small townships and boroughs with tight streets, the A4 Storm provides optimal performance. The A4 Storm performs in dump height, water capacity, broom size, sweep width, ergonomics, and sweeping performance. With the Schwarze patented Whisper Wheel fan system, this is also one of the quietest street sweepers on the market. The Whisper Wheel Technology reduces fuel consumption by 20%, increases power by 7%, and reduces noise by 70%.