Abstract: A collecting bag is for receiving material to be collected and has a receiving space delimited by a woven-fabric cloth and is delimited by outer edges of the collecting bag. The woven-fabric cloth of the collecting bag is at least partially air-permeable. The receiving space has an inlet opening for a conveying airflow which supplies the material to be collected, and an outlet opening for at least partially discharging the conveying airflow into the environment. The inlet opening is provided on a first edge of the collecting bag, and the emptying opening is provided on a second edge. The first and second edges are opposite one another at a spacing and are interconnected via longitudinal edges of the collecting bag. The outlet opening for at least partially discharging the conveying airflow is disposed in a side wall of the collecting bag, between the emptying opening and the inlet opening.

Abstract: A blower apparatus has a blower housing having a blower intake. A motor-driven blower is arranged in the blower housing and takes in air in a flow direction through the blower intake into the blower housing. A device for mechanical clearing of the blower intake is arranged at the blower intake. The mechanical clearing device is driven in rotation during operation of the blower apparatus.

Abstract: A blower apparatus has a blower housing having a blower intake. A motor-driven blower is arranged in the blower housing and takes in air in a flow direction through the blower intake into the blower housing. A device for mechanical clearing of the blower intake is arranged at the blower intake. The mechanical clearing device is driven in rotation during operation of the blower apparatus.