Filter construction resistant to the passage of water...

Filter control method, and filter controlled by the method

Filter device and cleaning method therefor

Filter device for an air-moving hair care appliance

Filter element

Filter element and mounting method

Filter element and mounting method

Filter element comprising pleated metal fiber fleece

Filter element having sealing members and methods

Filter element having sealing members and methods

Filter element, air cleaner, and methods

Filter element, air cleaner, and methods

Filter element, air cleaner, and methods

Filter element, air cleaner, and methods

Filter element, air cleaner, and methods

Filter fan

Filter for a gas analyzer

Filter for chemical oxygen generators

Filter for chemical oxygen generators

Filter for chemical oxygen generators