Lamps; Air-conditioning apparatus; Air conditioning installations; Air deodorizing apparatus; Air purifiers; Air purifying apparatus and machines; Air sterilising apparatus; Electric fans for air-conditioning; Gas scrubbing apparatus; Humidity control device, namely, a portable container containing a moisture-sensitive silica co-polymer that absorbs or releases moisture to maintain relative humidity in a particular range; Ionisation apparatus for the treatment of air; Light-emitting diode lig...