Product review (5 stars): Removes white dust, gas burns bluer :) New Boneco is better! And will work on Rowenta also!!
Got rid of white dust production, and now my gas burns a lot bluer! One odd thing about these humidifiers is that when they are putting out the white dust it effects the combustion of an open gas flame. It turns it from a complete blue to a yellow/orange flame. When I first saw this I called my local gas company, they sent out a tech, and after he checked all my appliances and furnace he came upstairs and saw the humidifier. His exact words were "that's your problem".....not that it really is a safety issue...I just thought I had "dirty" gas.

These newer BONECO cartridges work better than the older Air-o-swiss ones did. Seems to eliminate most of the white dust associated with using an ultrasonic humidifier. I wonder what that microscopic dust does to our lungs???

And this works on my new 2nd Rowenta humidifier!!