Product review (2 stars): Unsure if is filter issue or humidifier issue.
Finally gave up on the Graco Humidifier since finding the filter's was becoming more difficult. When I can find the filters they arrive in packaging the is crushed (which has been replaced previously),  The Graco Humidifier does provide above average humidity for an individual room, but the unit does spew out a lot of hard water powdery dust in the process.  Much of our bedroom lamps, table and dresser tops are coated with a fine powdery dust.  I am wondering if this was due to the Graco Humidier or the replacement filters.  Either way, the new Humidifier (Honeywell) does not spew the powdery dust but it also does not provide the desired humidity.