Flow-through air lint cleaners at cotton gins use the force of momentum (mass times velocity) opposing windage to remove foreign matter that has higher density than the cotton fibers. The amount of trash taken out by the air cleaner is controlled by opening and closing a cleaning slot. An experiment was conducted to determine if air-type lint cleaners are or can be made efficient in the removaL of cottonseed particles. The study examined the influence of the cleaning slot setting on the amount of seed-coat fragments, motes, and funiculi extracted from ginned lint.