Air purifying apparatus and machines; Filters for air-conditioning; Filters for air purifiers; Filters for water filtering apparatus; Filters and filtering devices for air and gas conditioning; Air filters for household use; Membrane filters for water filtering apparatus; Water filtering apparatus; Air filtering units; Air filtering installations; Filters made of fiber for water filtration; Filters for use with apparatus for steam generating

Air filtering units; Air filters for domestic use; Air filters for heating and cooling registers; Air filters for industrial installations; Air humidifiers; Air humidifying apparatus; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filters and filtering devices for air and gas conditioning; HEPA filters for household use; Water filtration and purification units and replacement cartridges and filters therefor