Air Cannon allows All For One to release an air shockwave from his arms.
The shockwave can manifest in different forms, depending on the motion All For One's arms follow when releasing it. The blast's shape can range from a straight, concentrated air shot to a wide, crescent-shaped air blade.
All For One utilizes Air Cannon as one of his primary means of attack. Sometimes, he uses this Quirk for defense as well, blowing away projectiles sent his way.
All For One is able to augment the power and speed of this Quirk up to devastating levels by combining it with Springlike Limbs plus other power-up Quirks like Kinetic Booster and multiple Strength Enhancers. With this combination, All For One becomes capable of easily destroying rows of buildings. The first time this technique was used, it was able to defeat several Pro Heroes at once.