An air cleaning device includes a filter element, an air guide region in flow connection with the filter element, and an air guide flap being arranged in the air guide region and being configured to adjust an air flow passing the air guide region. The air ...

A brake dust suction device comprises an inlet connected to a suction line that is connected to an opening of a disc brake, a suction fan assembly comprising a fan, a housing and an outlet in the housing, and configured to suction air comprising brake dust...

A vertical-shaft air filtering device having high flow rate and two-way air intake structure includes an air filter having its annular filtering member provided thereon with a fixed annular cover which is provided with an auxiliary air intake and a sheet-s...