Water purifying apparatus for household purposes; Water purification units; Water ionizers for household purposes; Water filtration and purification units and replacement cartridges and filters therefor for household use; Water purifying units, for potable water for portable use; Air purifying apparatus and machines; Air cleaning units; Electric air purifiers; Air purifying units for building use; Air purifying units for livestock barns use; Industrial air purifiers; Air purifying units for industrial use; Air purifiers for automobiles; Air washers; Air filtering installations; Air sterilizing apparatus; Air sterilisers; Air deodorizing apparatus; Electric air deodorizers; Ionization apparatus for the treatment of air; Air conditioning apparatus; Portable air conditioners; Air humidifiers; Humidifiers for household use; Anion generating humidifiers; Dehumidifiers; Electric air driers; Fans for air-conditioning apparatus; Electric fans; Water purification filters; Electric water purification filters for household purposes; Filters for drinking water; Filters for air purifiers; Filters for air conditioning