For best results replace filter after every 30-40 fillings under normal use or 1-2 months or when the humidifier has not been operated for an extended period of time. To install, simply screw onto tank cap and insert into full water tank. Place full water tank back on the water basin and wait fifteen minutes for the water to pass through the filter before starting the humidifier.
The Hydro Stick provides constant freshness in AIR O SWISS
humidifiers and air washers This advanced water maintenance system keeps your humidifier operating at its highest level between recommended cleanings^. ...