Inhibits microbial growth in your humidifier!\n\n- The newly developed Ionic Silver Stick (ISS) keeps the water fresh thanks to an innovative system, which efficiently eliminates odour-causing bacteria\n- A season's worth of optimal water quality maintenance in all AIR-O-SWISS and BONECO humidifiers\n- The ISS utilises the anti-microbial property of silver\n- The ISS works even when the humidifier is switched off\n- Use: only intendend for AIR-O-SWISS and BONECO humidifiers\n\nCleaning information\n\n- No cleaning of the stick necessary (replace once per season)\n- If drinking water is not used for cleaning, we recommend first removing the ISS\n- Following cleaning, the ISS can be reinserted in the unit as described in the operating instructions